2BGKB-B6PROWireless Mechanical Keyboard

B6 Pro Ultra-Slim Wireless Keyboard 2 Keychron B6 Pro Ultra-Slim Wireless Keyboard x 1 Type-C Cable x 1 Type-A to Type-C Adapter x1 Type-A 2.4GHz Receiver x 1 Quick Start Guide x 1 Silicone Skin x 1 IN THE BOX: 3 1 Connect 2.4GHz Receiver Switch toggle to 2.4GHz mode Connect the 2.4GHz receiver to the device USB port. 2 Connect Bluetooth Switch toggle to Bluetooth Press fn + 1 (for 4 seconds) and pair with device named Keychron B6 Pro. 2.4G = 2.4GHz BT / Cable / 2.4G BT / Cable / 2.4G fn + 1 4 Switch To The Right System 4 3 Connect Cable Switch toggle to Cable WinMac BT / Cable / 2.4G Please make sure the system toggle on the top right corner has been switched to the same system as your computer’s operating system. 5 Reset Keyboard Hold fn + J + Z for 4 seconds. 6 Switch Between Function And Multimedia Keys 5 fn + J + Z Press fn + X + L (for 4 seconds) to switch fn + X + L Function keys Multimedia keys F1 / F2 / F3 / F4 / F5 / F6 / F7 / F8 / F9 / F10 / F11 / F12 / F13 6 8 The Layers There are four layers of key settings on the keyboard. The layer 0 and layer 1 are for the Mac system. The layer 2 and layer 3 are for the Windows system. If your system toggle is switched to Mac, then the layer 0 will be activated. If your system toggle is switched to Windows, then the layer 2 will be activated. Remember that if you are using it in Windows mode, please make changes to the layer 2 instead of the top layer (the layer 0). This is a common mistake people are making. 7 The Keychron Launcher App Please visit launcher.keychron.com to access the Keychron online launcher app. This app enables users to remap keys, adjust key actuation points, assign multiple commands to a single key, enter game controller mode, and more. If it cannot recognize your keyboard, please reach our support to get instruction. *The online launcher App can only run on the latest version of Chrome, Edge, and Opera browsers yet. *The online launcher App only works when the keyboard is connected by wire to the computer. B6 Pro ULTRA-SLIM WIRELESS KEYBOARD SPECIFICATIONS Operating environment: -10 to 50°C Technical specifications can be subjected to change without notice, we apologize for any inconvenience caused. Number of keys: 109 Battery: 800mAh Battery life: 1200 hours Charging time: Around 2.5 hours Charging port: Type-C Mode: 2.4GHz / Bluetooth / Wired 2.4GHz / Bluetooth operating distance: Within 10 meters (open space) Name of Bluetooth device: Keychron B6 Pro 7 8 B6 Pro ULTRA-SLIM WIRELESS KEYBOARD OVERVIEW ① Bluetooth Channel ② Num Lock Indicator ③ Caps Lock Indicator ④ 2.4GHz / Bluetooth Indicator ⑤ Charging Indicator ⑥ BT Cable(Off) 2.4G (Mode Toggle Swtich) ⑦ Mac Win (OS Toggle Switch) ⑧ Type-C Charging Port ①② ③ ④ ⑤ Mac / Windows ⑦⑧⑥ 9 DEFAULT KEY LAYOUT: LAYER 0: This layer will be activated when your keyboard’s system toggle is switched to Mac. 10 Layer 1: This layer will be activated when your keyboard’s system toggle is switched to Mac and press the fn/MO(1) key. 11 LAYER 2: This layer will be activated when your keyboard’s system toggle is switched to Windows. 12 LAYER 3: This layer will be activated when your keyboard’s system toggle is switched to Windows and press the fn/MO(3) key. 13 KEY DESCRIPTION Screen Brightness Decrease Screen Brightness Increase Previous Play/Pause Next Mute Key Description Scr- Scr+ Prvs Play Next Mute Layer 1 will be activated when holding this key Key Description MO(1) Layer 3 will be activated when holding this key MO(3) Bluetooth Host 1 BTH1 Bluetooth Host 2 Bluetooth Host 3 2.4 GHz Host2.4G TaskTask View FileFile Explore BootBootLoader CalcCalculator Volume IncreaseVol+ BTH3 Volume DecreaseVol- BTH2 Key Description LED STATUS OVERVIEW Charging - static red Fully charged - static green Power indicator Bluetooth / 2.4GHz indicator Charging Enable Caps Lock - static white Disable Caps Lock - light off Caps lock indicatorCaps Lock Enable Num Lock - static white Disable Num Lock - light off Num lock indicator Num Lock Bluetooth / 2.4GHz LED LocationFunctionStatus Pairing - slow blinking Paired -static light and then off Reconnecting -fast blinking FUNCTION DESCRIPTION: CHARGING Plug the cable into a USB port and plug the other end into the keyboard port. Power Indicator: a red light will stay on while charging; fully charged in around 2.5 hours, the light turns green. 15 *The Keychron keyboard is compatible with all USB ports. Please use a 5V 1A adapter or USB 3.0 for the best performance. The Keychron B6 Pro can be charged in 2.4GHz/Cable/Bluetooth mode. **This product supports up to 5V charging voltage and 1A charging current. We are not responsible for any problems caused by improper charging. 1. Switch the toggle to the Bluetooth option. 2. Hold “fn+1” key for 4 seconds to activate Bluetooth pairing (the Bluetooth indicator fast flashes for 3 minutes to detect pairing). 3. Search for the Bluetooth device “Keychron B6 Pro” on your device and connect it (the Bluetooth indicator goes off after successful pairing). Note: This keyboard supports pairing up to 3 devices simultaneously via key combination “fn” + “1” / “fn” + “2” / “fn” + “3”. *The Bluetooth indicator will continue to flash for 3 minutes. **Slow or failed connections may exist due to different Bluetooth versions, please make sure all the settings are correct. BLUETOOTH MODE 2.4GHZ / CABLE / BLUETOOTH MODE (MODE TOGGLE) 2.4GHZ MODE 1. Connect the 2.4GHz receiver to your device's USB Port. 2. Switch the toggle to the 2.4GHz option. The keyboard will automatically connect to your device. 16 SWITCH BLUETOOTH DEVICES Short press key combination “fn” + “1” / “fn” + “2” / “fn” + “3” to switch to other device. 1. Switch the toggle to the Cable option (it only works when a USB cable is plugged in). 2. Connect our cable with your PC and keyboard. *Under Wired Mode, keyboard will not enter into Battery Saver Mode. WIRED MODE: RECONNECT: 1. Switch the keyboard to the Bluetooth option to activate the keyboard. 2. The Bluetooth indicat…

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Keychron Technology (Shenzhen) Co., Ltd. 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen, China Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 Date: 2024/6/5 U.S. Agent Designation Keychron Technology (Shenzhen) Co., Ltd. acknowledges their consent for the following contact located in the United States to act as their agent for service of process for the equipment for which authorization is sought (FCC ID: 2BGKB-B6PRO): Name and company of U.S. agent: Keychron, Inc. Physical U.S. address of agent: 8 The Green ste a, Dover, DE 19901, United States FRN of U.S. agent: 0033472820 Email address of U.S. agent: [email protected] Keychron, Inc. acknowledges their obligation to accept service of process on behalf of Keychron Technology (Shenzhen) Co., Ltd. Keychron Technology (Shenzhen) Co., Ltd. with the FRN [0035456235] accepts its obligation to maintain an agent for service of process in the United States for no less than one year after either the grantee has permanently terminated all marketing and importation of the applicable equipment within the U.S., or the conclusion of any Commission-related administrative or judicial proceeding involving the equipment, whichever is later. By signing this form, we confirm the above and that we are aware of the application requirements listed under § 2.911(d)(7). The information provided in this letter is based on the referenced rule parts of Title 47 of the CFR as well as KDB 986446 D01. An expiration date for this letter does not exist. In case the U.S. agent changes, the grantee is obligated to notify the FCC within 30 days via the granting TCB. Sincerely, Signature Nick Xu CEO Keychron Technology (Shenzhen) Co., Ltd. Signature Nick Xu CEO Keychron, Inc.. 48_[model] US_Agent_2.911(d)(7) - U, V05

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 4 EXTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 4 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 4 Fig.5 Fig.6 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 4 of 4 Fig.7

Label Location: FCC ID: 2BGKB-B6PRO

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 INTERIOR PHOTOGRAPHS OF EUT Fig.1 Fig.2 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 Fig.3 Fig.4 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Fig.5 Fig.6 Bluetooth Antenna

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 1 of 3 RADIO FREQUENCY EXPOSURE Limit According to section B.4 of 447498 D04 Interim General RF Exposure Guidance v01 SAR-based thresholds are derived based on frequency, power, and separation distance of the RF source. The formula defines the thresholds in general for either available maximum time-averaged power or maximum time-averaged ERP, whichever is greater. If the ERP of a device is not easily determined, such as for a portable device with a small form factor, the applicant may use the available maximum time-averaged power exclusively if the device antenna or radiating structure does not exceed an electrical length of λ/4. As for devices with antennas of length greater than λ/4 where the gain is not well defined, but always less than that of a half-wave dipole (length λ/2), the available maximum time-averaged power generated by the device may be used in place of the maximum time-averaged ERP, where that value is not known. The separation distance is the smallest distance from any part of the antenna or radiating structure for all persons, during operation at the applicable ERP. In the case of mobile or portable devices, the separation distance is from the outer housing of the device where it is closest to the antenna. The SAR-based exemption formula of § 1.1307(b)(3)(i)(B), repeated here as Formula (B.2), applies for single fixed, mobile, and portable RF sources with available maximum time-averaged power or effective radiated power (ERP), whichever is greater, of less than or equal to the threshold Pth (mW). This method shall only be used at separation distances from 0.5 cm to 40 cm and at frequencies from 0.3 GHz to 6 GHz (inclusive). Pth is given by Formula (B.2). Where and f is in GHz, d is the separation distance (cm), and ERP 20cm is per Formula (B.1). Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 2 of 3 The example values shown in Table B.2 are for illustration only. Frequency (MHz) Distance (mm) 5 10 15 20 25 30 35 40 45 50 300 39 65 88 110 129 148 166 184 201 217 450 22 44 67 89 112 135 158 180 203 226 835 9 25 44 66 90 116 145 175 207 240 1900 3 12 26 44 66 92 122 157 195 236 2450 3 10 22 38 59 83 111 143 179 219 3600 2 8 18 32 49 71 96 125 158 195 5800 1 6 14 25 40 58 80 106 136 169 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO This report shall not be reproduced except in full, without the written approval of Shenzhen Tongzhou Testing Co.,Ltd Page 3 of 3 Conducted Power Results BLE: TestMode Antenna Frequency[MHz] Result[dBm] BLE_1M Ant1 2402 -0.03 BLE_1M Ant1 2440 0.07 BLE_1M Ant1 2480 0.44 SRD: TestMode Antenna Frequency[MHz] Result[dBm] SRD Ant1 2402 -0.04 SRD Ant1 2440 0.07 SRD Ant1 2480 0.41 Manufacturing tolerance BLE: GFSK(1Mbps) (Peak) Channel Channel 0 Channel 19 Channel 39 Target (dBm) -0.5 -0.5 0 Tolerance ±(dB) 1 1 1 SRD: GFSK (Peak) Channel Channel 0 Channel 19 Channel 39 Target (dBm) -0.5 -0.5 0 Tolerance ±(dB) 1 1 1 Results BLE: Test Mode Max Conducted Tune Up Power(dBm) Max of ERP and Conducted Power including Tune Up (dBm) Max of ERP and Conducted Power including Tune Up (mW) Exemption Limit(mW) GFSK(1Mbps) 1.0 1.0 1.26 3 SRD: Test Mode Max Conducted Tune Up Power(dBm) Max of ERP and Conducted Power including Tune Up (dBm) Max of ERP and Conducted Power including Tune Up (mW) Exemption Limit(mW) SRD 1.0 1.0 1.26 3 Max of ERP and Conducted Power including Tune Up (dBm) = Max Conducted Tune Up Power(dBm) and Max Conducted Tune Up Power(dBm) + Antenna Gain(dBi)-2.15), whichever is greater. The antenna gain of the EUT for BT is 1.87dBi (Max). the Maximum Eirp is used for Routine Evaluation Exemption according to B.4 of 447498 D04 Interim General RF Exposure Guidance v01. So, the SAR evaluation is not required.

Test Report For Antenna1 Tested Products. • Antenna1: integrated antenna. • Frequency = 2.402GHz. • Frequency = 2.441GHz. • Frequency = 2.480GHz. Antenna1 Photo & Length (mm) Radiation pattern: Antenna 1. XZ Plane at f = 2.402GHz 90 90 135 0 -5 45 -10 -15 -20 -25 -30 135 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Radiation pattern: Antenna 1. YZ Plane at f = 2.402GHz 135 90 0 -5 45 -10 -15 -20 -25 -30 135 90 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Radiation pattern: Antenna 1. XY Plane at f = 2.402GHz 90 90 135 0 -5 45 -10 -15 -20 -25 -30 135 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Radiation pattern: Antenna 1. XZ Plane at f = 2.441GHz 90 90 135 0 -5 45 -10 -15 -20 -25 -30 135 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Radiation pattern: Antenna 1. YZ Plane at f = 2.441GHz 90 90 135 0 -5 45 -10 -15 -20 -25 -30 135 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Radiation pattern: Antenna 1. XY Plane at f = 2.441GHz 90 90 135 0 -5 45 -10 -15 -20 -25 -30 135 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Radiation pattern: Antenna 1. XZ Plane at f = 2.480GHz 90 90 135 0 -5 45 -10 -15 -20 -25 -30 135 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Radiation pattern: Antenna 1. YZ Plane at f = 2.480GHz 90 90 135 0 -5 45 -10 -15 -20 -25 -30 135 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Radiation pattern: Antenna 1. XY Plane at f = 2.480GHz 90 90 135 0 -5 45 -10 -15 -20 -25 -30 135 0 45 -5 -10 180 -35-30 -25 -20 -15 -10 -5 0 0 180 -15 -10 -5 0 0 225 315 225 315 270 Co-cross polarization field (dBi) Solid line: vertical polarization Dash line: horizontal polarization 270 Total field (dBi) Return Lo s s (dB ) Return Loss: Antenna 1 -2 -4 -6 -8 -10 -12 -14 -16 2 2.2 2.4 2.6 2.8 3 Frequency (GHz) BW(-10dB) 13.48% Measurements summary MAX Gain 1.87dBi Frequency (GHz) Plane Return Loss (dB) Polarization Gain max. (dBi) θ for Gain max. φ for Gain max. Antenna 1 2.402 XZ -10.90 Vertical -7.8 290 2.402 XZ -10.90 Horizontal 0.786 182 2.402 YZ -10.90 Vertical 1.21 226 2.402 YZ -10.90 Horizontal -7.75 10 2.402 XY -10.90 Vertical -15.4 20 2.402 XY -10.90 Horizontal 0.93 180 2.441 XZ -12.20 Vertical -7.36 318 2.441 XZ -12.20 Horizontal 1.32 180 2.441 YZ -12.20 Vertical 0.981 204 2.441 YZ -12.20 Horizontal -8.23 24 2.441 XY -12.20 Vertical -14.1 -14 2.441 XY -12.20 Horizontal 1.74 180 2.48 XZ -13.80 Vertical -7.95 312 2.48 XZ -13.80 Horizontal 1.81 186 2.48 YZ -13.80 Vertical 0.204 214 2.48 YZ -13.80 Horizontal -8.38 8 2.48 XY -13.80 Vertical -15.8 12 2.48 XY -13.80 Horizontal 1.87 180

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 1 of 23 Appendix Test Data for BLE (Conducted Measurement) Product Name: Wireless Mechanical Keyboard Trade Mark: Keychron Test Model: B6 Pro FCC ID: 2BGKB-B6PRO Environmental Conditions Temperature: 23.8°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Hugo Chen NOTE N/A Appendix A: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 0.696 2401.664 2402.360 0.5 PASS BLE_1M Ant1 2440 0.680 2439.676 2440.356 0.5 PASS BLE_1M Ant1 2480 0.680 2479.672 2480.352 0.5 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 2 of 23 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 3 of 23 BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 4 of 23 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict BLE_1M Ant1 2402 1.0336 2401.4932 2402.5268 --- --- BLE_1M Ant1 2440 1.0174 2439.4965 2440.5139 --- --- BLE_1M Ant1 2480 1.0378 2479.4965 2480.5343 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 5 of 23 Test Graphs BLE_1M-Ant1-2402 BLE_1M-Ant1-2440 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 6 of 23 BLE_1M-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 7 of 23 Appendix C: Maximum peak conducted output power Test Result Peak TestMode Antenna Frequency[MHz] Conducted Peak Power[dBm] Conducted Limit[dBm] Verdict BLE_1M Ant1 2402 -0.03 ≤30 PASS BLE_1M Ant1 2440 0.07 ≤30 PASS BLE_1M Ant1 2480 0.44 ≤30 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 8 of 23 Test Graphs Peak BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 9 of 23 BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 10 of 23 Appendix D: Maximum peak power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict BLE_1M Ant1 2402 -10.80 ≤8.00 PASS BLE_1M Ant1 2440 -10.04 ≤8.00 PASS BLE_1M Ant1 2480 -9.55 ≤8.00 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 11 of 23 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2440-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 12 of 23 BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 13 of 23 Appendix E: Band edge measurements Test Result TestMod e Antenn a ChNam e Frequency[MHz ] RefLevel[dBm ] Result[dBm ] Limit[dBm ] Verdic t BLE_1M Ant1 Low 2402 -0.89 -51.19 ≤-20.89 PASS BLE_1M Ant1 High 2480 0.20 -49.28 ≤-19.8 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 14 of 23 Test Graphs BLE_1M-Ant1-2402-PASS BLE_1M-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 15 of 23 Appendix F: Conducted Spurious Emission Test Result TestMod e Antenn a Frequency[MHz ] FreqRange [MHz] RefLeve l [dBm] Result[dBm ] Limit[dBm ] Verdic t BLE_1M Ant1 2402 0~Referenc e -0.84 -0.84 --- PASS BLE_1M Ant1 2402 30~1000 -0.84 -62.98 ≤-20.84 PASS BLE_1M Ant1 2402 1000~26500 -0.84 -48.22 ≤-20.84 PASS BLE_1M Ant1 2440 0~Referenc e -0.65 -0.65 --- PASS BLE_1M Ant1 2440 30~1000 -0.65 -62.59 ≤-20.65 PASS BLE_1M Ant1 2440 1000~26500 -0.65 -49.16 ≤-20.65 PASS BLE_1M Ant1 2480 0~Referenc e 0.09 0.09 --- PASS BLE_1M Ant1 2480 30~1000 0.09 -63.04 ≤-19.91 PASS BLE_1M Ant1 2480 1000~26500 0.09 -50.2 ≤-19.91 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 16 of 23 Test Graphs BLE_1M-Ant1-2402-0~Reference-PASS BLE_1M-Ant1-2402-30~1000-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 17 of 23 BLE_1M-Ant1-2402-1000~26500-PASS BLE_1M-Ant1-2440-0~Reference-PASS BLE_1M-Ant1-2440-30~1000-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 18 of 23 BLE_1M-Ant1-2440-1000~26500-PASS BLE_1M-Ant1-2480-0~Reference-PASS BLE_1M-Ant1-2480-30~1000-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 19 of 23 BLE_1M-Ant1-2480-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 20 of 23 Appendix G: Duty Cycle Test Result TestMode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] BLE_1M Ant1 2402 19.00 19.00 100.00 0.00 BLE_1M Ant1 2440 19.00 19.00 100.00 0.00 BLE_1M Ant1 2480 19.00 19.00 100.00 0.00 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 21 of 23 Test Graphs NTNV-BLE_1M-Ant1-2402 NTNV-BLE_1M-Ant1-2440 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 22 of 23 NTNV-BLE_1M-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-BLE Page 23 of 23

Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 1 of 23 Appendix Test Data for SRD (Conducted Measurement) Product Name: Wireless Mechanical Keyboard Trade Mark: Keychron Test Model: B6 Pro FCC ID: 2BGKB-B6PRO Environmental Conditions Temperature: 23.8°C Relative Humidity: 58% ATM Pressure: 100.0 kPa Test Engineer: Allen Lai Supervised by: Hugo Chen NOTE N/A Appendix A: DTS Bandwidth Test Result TestMode Antenna Frequency[MHz] DTS BW [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict SRD Ant1 2402 1.276 2401.368 2402.644 0.5 PASS SRD Ant1 2440 1.420 2439.292 2440.712 0.5 PASS SRD Ant1 2480 1.336 2479.320 2480.656 0.5 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 2 of 23 Test Graphs SRD-Ant1-2402-PASS SRD-Ant1-2440-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 3 of 23 SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 4 of 23 Appendix B: Occupied Channel Bandwidth Test Result TestMode Antenna Frequency[MHz] OCB [MHz] FL[MHz] FH[MHz] Limit[MHz] Verdict SRD Ant1 2402 2.0285 2401.0053 2403.0338 --- --- SRD Ant1 2440 2.1119 2438.9610 2441.0729 --- --- SRD Ant1 2480 2.0525 2478.9903 2481.0428 --- --- Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 5 of 23 Test Graphs SRD-Ant1-2402 SRD-Ant1-2440 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 6 of 23 SRD-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 7 of 23 Appendix C: Maximum peak conducted output power Test Result Peak TestMode Antenna Frequency[MHz] Conducted Peak Power[dBm] Conducted Limit[dBm] Verdict SRD Ant1 2402 -0.04 ≤30 PASS SRD Ant1 2440 0.07 ≤30 PASS SRD Ant1 2480 0.41 ≤30 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 8 of 23 Test Graphs Peak SRD-Ant1-2402-PASS SRD-Ant1-2440-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 9 of 23 SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 10 of 23 Appendix D: Maximum peak power spectral density Test Result TestMode Antenna Frequency[MHz] Result[dBm/3kHz] Limit[dBm/3kHz] Verdict SRD Ant1 2402 -12.54 ≤8.00 PASS SRD Ant1 2440 -12.38 ≤8.00 PASS SRD Ant1 2480 -11.77 ≤8.00 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 11 of 23 Test Graphs SRD-Ant1-2402-PASS SRD-Ant1-2440-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 12 of 23 SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 13 of 23 Appendix E: Band edge measurements Test Result TestMod e Antenn a ChNam e Frequency[MHz ] RefLevel[dBm ] Result[dBm ] Limit[dBm ] Verdic t SRD Ant1 Low 2402 -2.74 -36.21 ≤-22.74 PASS SRD Ant1 High 2480 -2.05 -49.44 ≤-22.05 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 14 of 23 Test Graphs SRD-Ant1-2402-PASS SRD-Ant1-2480-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 15 of 23 Appendix F: Conducted Spurious Emission Test Result TestMod e Antenn a Frequency[MHz ] FreqRange [MHz] RefLeve l [dBm] Result[dBm ] Limit[dBm ] Verdic t SRD Ant1 2402 0~Referenc e -2.73 -2.73 --- PASS SRD Ant1 2402 30~1000 -2.73 -61.88 ≤-22.73 PASS SRD Ant1 2402 1000~26500 -2.73 -50.14 ≤-22.73 PASS SRD Ant1 2440 0~Referenc e -1.94 -1.94 --- PASS SRD Ant1 2440 30~1000 -1.94 -61.9 ≤-21.94 PASS SRD Ant1 2440 1000~26500 -1.94 -49.34 ≤-21.94 PASS SRD Ant1 2480 0~Referenc e -1.87 -1.87 --- PASS SRD Ant1 2480 30~1000 -1.87 -62.7 ≤-21.87 PASS SRD Ant1 2480 1000~26500 -1.87 -50.42 ≤-21.87 PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 16 of 23 Test Graphs SRD-Ant1-2402-0~Reference-PASS SRD-Ant1-2402-30~1000-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 17 of 23 SRD-Ant1-2402-1000~26500-PASS SRD-Ant1-2440-0~Reference-PASS SRD-Ant1-2440-30~1000-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 18 of 23 SRD-Ant1-2440-1000~26500-PASS SRD-Ant1-2480-0~Reference-PASS SRD-Ant1-2480-30~1000-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 19 of 23 SRD-Ant1-2480-1000~26500-PASS Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 20 of 23 Appendix G: Duty Cycle Test Result TestMode Antenna Frequency[MHz] ON Time [ms] Period [ms] Duty Cycle [%] Duty Cycle Factor[dB] SRD Ant1 2402 19.00 19.00 100.00 0.00 SRD Ant1 2440 19.00 19.00 100.00 0.00 SRD Ant1 2480 19.00 19.00 100.00 0.00 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 21 of 23 Test Graphs NTNV-SRD-Ant1-2402 NTNV-SRD-Ant1-2440 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 22 of 23 NTNV-SRD-Ant1-2480 Shenzhen Tongzhou Testing Co.,Ltd FCC ID: 2BGKB-B6PRO Report No.: TZ240706093-SRD Page 23 of 23

FCC TEST REPORT Test report On Behalf of Keychron Technology (Shenzhen) Co., Ltd. For Wireless Mechanical Keyboard Model No: B6 Pro FCC ID: 2BGKB-B6PRO Prepared for : Keychron Technology (Shenzhen) Co., Ltd. 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen, China Prepared By : Shenzhen Tongzhou Testing Co.,Ltd 1th Floor, Building 1, Haomai High-tech Park, Huating Road 387, Dalang Street, Longhua, Shenzhen, China Date of Test: 2024/7/14 ~ 2024/7/21 Date of Report: 2024/7/22 Report Number: TZ240706093-BLE The test report apply only to the specific sample(s) tested under stated test conditions It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: TZ240706093-BLE Page 2 of 34 TEST RESULT CERTIFICATION Applicant’s name ................. : Keychron Technology (Shenzhen) Co., Ltd. Address .................................. : 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen, China Manufacture's Name ............ : Keychron Technology (Shenzhen) Co., Ltd. Address .................................. : 201, Building 2, Wenkeng Industrial Zone, No. 24, Dafa Road, DafaPu Community, Bantian Jie Dao, Longgang District, Shenzhen, China Product description Trade Mark: Keychron Product name ........................... : Wireless Mechanical Keyboard Model and/or type reference : B6 Pro Standards ............................. : FCC Rules and Regulations Part 15 Subpart C Section 15.247 ANSI C63.10: 2013 This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Tongzhou Testing Co.,Ltd is acknowledged as copyright owner and source of the material. Shenzhen Tongzhou Testing Co.,Ltd takes no responsibility for and will not assume liability for damages resulting from the reader's interpretation of the reproduced material due to its placement and context. Date of Test ........................................... : Date (s) of performance of tests ...…

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