2AYDPXM-RF87Wireless bluetooth multi-mode mechanical keyboard

User Manual Xinmeng (XM-RF87) Wireless Bluetooth Mechanical Manual One. Product Features: Xinmeng (XM-RF87) wireless bluetooth three-mode mechanical keyboard adopts three working modes of Bluetooth-2.4G-wired to connect and control related equipment. The products can run on computers Windows2000, WindowsXP, Vista, Win7, Win8, Win10. And the mobile phone system with Bluetooth version. 2. Hardware requirements: a mobile phone or computer with Bluetooth and a USB port for connecting the device. Three, USB connection diagram Fourth, the installation steps and use of Xinmeng RF87-87 key keyboard: 1. Keyboard Bluetooth connection code installation steps and use: press FN+1=BT1, FN+2=BT2, FN+3=BT3 combination key is the keyboard Bluetooth broadcast code key, when you want to use the keyboard’s Bluetooth channel, Turn the power switch of the keyboard to the ON position, when long press FN+1=BT1, the Bluetooth broadcast key, the keyboard Bluetooth code matching light will flash green light quickly, when the Bluetooth code is connected, the light will stay green; when long press FN +2=BT2 Bluetooth broadcast key, the keyboard Bluetooth code matching light will flash yellow light quickly, when the Bluetooth code is connected, the light will stay on yellow light; when long press FN+3=BT3 Bluetooth broadcast key, the keyboard Bluetooth code matching The light will flash cyan light quickly. When the Bluetooth pairing code is connected, the light will stay on cyan light. The product adopts three Bluetooth pairing methods for intelligent identification and Bluetooth 3.0-4.0-5.0 standard communication. For example: when using on the computer WIN-7, you should first click (start) on the computer and select "Control Panel" and then click "Add Device". Then the computer will appear to add a device interface, then press the keyboard FN+BT1 BT2., BT3 will perform code matching broadcast. When the keyboard icon appears on the computer interface, click on the "Keyboard Icon" and then select "Add Device" and follow the prompts, then the computer can be connected to the keyboard Bluetooth. Installation steps on the computer WIN-10: Click "Start" on the computer, select "Device", select "Bluetooth" and then select "Keyboard" in the list, and click the pairing and interface dialogue operation to complete. 2. Keyboard 2.4G wireless installation steps and use: The keyboard can also be connected to the computer with a receiver. When the keyboard power is turned on, long press the FN+4=2.4G key, then the keyboard code matching light will flash red quickly, then It is necessary to plug the receiver into a free USB port of the computer. At this time, the computer will automatically check the code and install the corresponding adapting software. Generally, the computer will prompt; the installation is complete and ready to use. At this time, the code matching light of the keyboard will become long and bright red light, which means that the code matching of the keyboard with the computer can be used successfully. 3. Keyboard wired installation steps and use: The keyboard can also be connected to the computer with the equipped TYPE-C cable. When the line is plugged in, press and hold the keyboard FN+5=Line key, then the keyboard code matching light will flash white light , And then it will automatically connect to the computer and be ready for use. At this time, the code matching light of the keyboard will be long and bright blue light (when fully charged, it will be long white light), which indicates that the keyboard is successfully connected to the computer TYPE-C line and can be used. 3. When using Xinmeng's wireless products for the first time, it is recommended to use the charging cable that comes with the product to connect to the computer's USB port or DC-5V charger to fully charge the keyboard before using it. When charging, observe the direction of the TYOPE-C head of the cable and insert it into the charging dock of the keyboard carefully. The keyboard indicator will light blue when charging, and will go out when fully charged. 4. Xinmeng wireless bluetooth keyboard adopts 87 keys with FN key function, two-color molding design, which greatly increases the light transmission and durability of the keyboard, and the appearance design is beautiful. When the wireless keyboard is stationary, the keyboard will automatically turn off. Turn off the backlight, then press any key to restore the light. Five, XM-RF87 wireless bluetooth mechanical keyboard FN key light operation instructions: FN+(\key)=switch the light mode (switch the light every time you press it), FN+"↑/↓"=light brightness adjustment link, FN+"←/→" = adjust breathing or change speed. (6) XM-RF87 keyboard FN multimedia key control method description. FN+F1 = Computer FN+F2=Search FN+F3=Calculator FN+F4 = music FN+F5 = previous song FN+F6= next song FN+F7=Play/Pause FN+F8=Stop FN+F9=Mute FN+F10=Volume down FN+F11=Volume up FN+F12=Lock all keys and press again to unlock FN+WIN key=Lock WIN key-press again to unlock FN+PAGEUP=Light on mode Seven, matters needing attention: 1. The wireless keyboard has an intelligent power saving function: when the keyboard is stationary for about 2-3 minutes, the keyboard will automatically turn off the backlight, then press any key to restore the light. 2 When the receiver is plugged in and the computer cannot recognize it for use, it should be considered caused by poor port contact, and it needs to be replaced with another computer USB port for use. When the keyboard or mouse backlight is dimmed or the product is not used normally, it should be because the built-in power of the product is insufficient. Charge it in time. The charging time will vary according to the power of the charger. If the product is not used for a long time, please turn the power switch of the product to the OFF position. 3 When the product freezes or does not move suddenly during use, it should be caused by the same signal interference in the environmen…

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S20101400101 Model: XM-RF87 N20191017V1 ATTACHMENT PHOTOGRAPHS OF EUT Photo 1 Photo 2 S20101400101 Model: XM-RF87 N20191017V1 Photo 3 Photo 4 S20101400101 Model: XM-RF87 N20191017V1 Photo 5 Photo 6

Label and its Loca tion 50*30mm This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must a ccept any interference received, including interference that may cause undesired operation.

S20101400101 Model: XM-RF87 N20191017V1 Photo 7 Photo 8 S20101400101 Model: XM-RF87 N20191017V1 Photo 9 Photo 10 ANT S20101400101 Model: XM-RF87 N20191017V1 Photo 11

version01 Shenzhen Fucaixin Electronics Co., Ltd. Declaration concerning Antenna Specification It is hereby declared that the product Model No.: XM-RF87,RF68,RF84,RF104,RF108 FCC ID: 2AYDPXM-RF87 fulfills the requirement in FCC test relating to the antenna type. The device specified above confirms to the FCC recommendations for PCB antenna type(s) described below: Model No. of antenna: N/A Type of antenna: PCB Antenna Gain of the antenna: 0 dBi Frequency range: 2403-2480 MHz The mounting of the antenna is fixed to the radio module and no other antenna should be used. Company name: Shenzhen Fucaixin Electronics Co., Ltd. Address: Building D, No. 21, Nanpu Road, Shajing Street, Baoan District, Shenzhen,China. City: Shenzhen ZIP / Postal code: Country: China Name: Xieheng Xue Date: 2021/01/11 Signature:

FCC ID: 2AYDPXM-RF87 Portable device According to §15.247(e)(i) and §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • f(GHZ) is the RF channel transmit frequency in GHz • Power and distance are rounded to the nearest mW and mm before calculation • The result is rounded to one decimal place for comparison When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. GFSK: Antenna Type :PCB Antenna Antenna Gain: 0 dBi Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n 1g SAR Exclusion threshold SAR test exclusion 2.403-2.205 0.602-3±1 -2 0.631<50.195623.00YES 2.441 -2.1570.609-3±1 -2 0.631<50.197163.00YES 2.480 -3.5030.446-3±1 -2 0.631<50.198733.00YES GFSK Conclusion: For the max result : 0.19873≤ 3.0 for 1-g SAR, No SAR is required. Signature: Date: 2021-1-11 NAME AND TITLE (Please print or type): Alex Li /Manager COMPANY (Please print or type): Shenzhen NTEK Testing Technology Co., Ltd./ 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China

Report No.: S20101400101001 Version.1.3 Page 1 of 48 RADIO TEST REPORT FCC ID: 2AYDPXM-RF87 Product: Wireless bluetooth multi-mode mechanical keyboard Trade Mark: Model No.: XM-RF87 Family Model: RF68,RF84,RF104,RF108 Report No.: S20101400101001 Issue Date: 09 Dec. 2020 Prepared for Shenzhen Fucaixin Electronics Co., Ltd. Building D, No. 21, Nanpu Road, Shajing Street, Baoan District, Shenzhen,China. Prepared by Shenzhen NTEK Testing Technology Co., Ltd. 1/F, Building E, Fenda Science Park, Sanwei Community, Xixiang Street Bao’an District, Shenzhen 518126 P.R. China Tel:400-800-6106 , 0755-3699-5508 Website:http://www.ntek.org.cn Report No.: S20101400101001 Version.1.3 Page 2 of 48 TABLE OF CONTENTS 1 TEST RESULT CERTIFICATION ...................................................................................................................... 3 2 SUMMARY OF TEST RESULTS ......................................................................................................................... 4 3 FACILITIES AND ACCREDITATIONS ............................................................................................................. 5 3.1 FACILITIES..................................................................................................................................................... 5 3.2 LABORATORY ACCREDITATIONS AND LISTINGS ................................................................................. 5 3.3 MEASUREMENT UNCERTAINTY ............................................................................................................... 5 4 GENERAL DESCRIPTION OF EUT .................................................................................................................. 6 5 DESCRIPTION OF TEST MODES ..................................................................................................................... 8 6 SETUP OF EQUIPMENT UNDER TEST ........................................................................................................... 9 6.1 BLOCK DIAGRAM CONFIGURATION OF TEST SYSTEM ....................................................................... 9 6.2 SUPPORT EQUIPMENT ............................................................................................................................... 10 6.3 EQUIPMENTS LIST FOR ALL TEST ITEMS .............................................................................................. 11 7 TEST REQUIREMENTS .................................................................................................................................... 13 7.1 CONDUCTED EMISSIONS TEST ............................................................................................................... 13 7.2 RADIATED SPURIOUS EMISSION ............................................................................................................ 16 7.3 6DB BANDWIDTH ....................................................................................................................................... 25 7.4 DUTY CYCLE ............................................................................................................................................... 26 7.5 PEAK OUTPUT POWER .............................................................................................................................. 28 7.6 POWER SPECTRAL DENSITY ................................................................................................................... 29 7.7 CONDUCTED BAND EDGE MEASUREMENT......................................................................................... 31 7.8 SPURIOUS RF CONDUCTED EMISSIONS ................................................................................................ 32 7.9 ANTENNA APPLICATION .......................................................................................................................... 33 8 TEST RESULTS ................................................................................................................................................... 34 8.1 MAXIMUM CONDUCTED OUTPUT POWER ....................................................................................................... 34 8.2 OCCUPIED CHANNEL BANDWIDTH .................................................................................................................. 36 8.3 MAXIMUM POWER SPECTRAL DENSITY LEVEL ............................................................................................... 40 8.4 BAND EDGE .................................................................................................................................................... 42 8.5 CONDUCTED RF SPURIOUS EMISSION ............................................................................................................. 45 Report No.: S20101400101001 Version.1.3 Page 3 of 48 1 TEST RESULT CERTIFICATION Applicant’s name ......................... : Shenzhen Fucaixin Electronics Co., Ltd. Address ....................................... : Building D, No. 21, Nanpu Road, Shajing Street, Baoan District, Shenzhen,China. Manufacturer's Name .................. : Shenzhen Fucaixin Electronics Co., Ltd. Address ....................................... : Building D, No. 21, Nanpu Road, Shajing Street, Baoan District, Shenzhen,China. Product description Product name .............................. : Wireless bluetooth multi-mode mechanical keyboard Model and/or type reference ...... : XM-RF87 Family Model ............................... : RF68,RF84,RF104,RF108 Measurement Procedure Used: APPLICABLE STANDARDS APPLICABLE STANDARD/ TEST PROCEDURE TEST RESULT FCC 47 CFR Part 2, Subpart J FCC 47 CFR Part 15, Subpart C KDB 174176 D01 Line Conducted FAQ v01r01 ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 Complied This device described above has been tested by Shenzhen NTEK Testing Technology Co., Ltd., and the test results show that the equipment under test (EUT) is in compliance with the…

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FCC ID: 2AYDPXM-RF87 Radiated Measurement Photos FCC ID: 2AYDPXM-RF87 Conducted Measurement Photos