2AXGU-CH-1Bluetooth anti loss device

Keep new and used batteries away from children.If the battery compartment does not close securely,stop using the product and keepit away from children. If you think batteries might have been swallowed or placed inside any part of the body,seek immediate medical attention. FCC Statement 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 accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: • Reorient or relocate the receiving antenna. • Increase the separation between the equipment and receiver. • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. • Consult the dealer or an experienced radio/TV technician for help. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.

FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Appendix II EUT External Photographs Photo 1 Appearance of EUT Photo 2 Appearance of EUT

FCC ID:2AXGU-CH-1 TB-RF-074-1.0 Appendix IFCC ID Label Size for the label: 10mm X 15mm FCCID: 2AXGU-CH-1 Model: CH-1

FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Appendix III EUT Internal Photographs Photo 3 Internal of Charging box Photo 4 Appearance of Battery FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Photo 5 Appearance of PCB Photo 6 Appearance of PCB BT Ant.

Shenzhen Toby Technology Co., Ltd. Report No.: TB-MPE182852 Page: 1 of 3 TB-RF-074-1.0 1A/F., Bldg.6, Yusheng Industrial Zone, The National Road No.107 Xixiang Section 467, Xixiang, Bao’an, Shenzhen, China Tel: +86 75526509301 Fax: +86 75526509195 RF Exposure Evaluation FCC ID: 2AXGU-CH-1 1. Client Information Applicant : Shenzhen Chiheng Industrial Co., Ltd Address : 2 / F, 4-2 Shajing Road, dawangshan community, Shajing street, Bao'an District, Shenzhen, China Manufacturer : Shenzhen Chiheng Industrial Co., Ltd Address : 2 / F, 4-2 Shajing Road, dawangshan community, Shajing street, Bao'an District, Shenzhen, China 2. General Description of EUT EUT Name : Bluetooth anti loss device Model(s) : CH-1, CH-2, CH-3 Model Difference : All PCB boards and circuit diagrams are the same, the only difference is the appearance. Product Description : Operation Frequency: Bluetooth 4.2(BLE): 2402MHz~2480MHz Number of Channel: Bluetooth 4.2(BLE): 40 channels RF Output Power: -11.431dBm (Max) Antenna Gain: -4dBi PCB Antenna Modulation Type: GFSK Bit Rate of Transmitter: 1Mbps Power Rating : Battery Model: CR2032 Capacity: 220mAh Rated Voltage: DC 3V Software Version : N/A Hardware Version : RB-FD01Ver2 Connecting I/O Port(S) : : Please refer to the User's Manual Remark: The antenna gain provided by the applicant, the adapter and verified for the RF conduction test and adapter provided by TOBY test lab. Note: More test information about the EUT please refer the RF Test Report. Report No.: TB-MPE180207 Page: 2 of 3 TB-RF-074-1.0 SAR Test Exclusion Calculations 1. FCC: According to KDB 447498 D01 Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies v06. (1) Clause 4.3: General SAR test reduction and exclusion guidance Sub clause 4.31: Standalone SAR test exclusion considerations 1) The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6GHz at test separation distance≤5 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤3.0 for 1-g SAR [(max. power of channel, including tune-up tolerance, mW)/(min. test separation, mm)]*[√f (GHz) ] ≤7.5.0 for 10-g SAR Report No.: TB-MPE180207 Page: 3 of 3 TB-RF-074-1.0 2. Calculation: Test separation: 5mm BLE Mode (1Mbps) Frequency (GHz) Conducted Power (dBm) Turn-up Power Tolerance (dB) Max power of tune up tolerance (dBm) Max power of tune up tolerance (mw) Calculation Value Threshold Value 2.402 -11.431 -11±1 -10 0.10 0.03 3.0 2.442 -11.73 -11±1 -10 0.10 0.03 3.0 2.480 -11.794 -11±1 -10 0.10 0.03 3.0 Conclusion: The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06. -----END OF REPORT-----

Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 1 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 RF Test Data for Bluetooth LE (Conducted Measurements) General Description of EUT Product Name: Bluetooth anti loss device Test Model: CH-1 Sample ID: 20210720-08_1-2# Environmental Conditions Temperature: 23.8°C Relative Humidity: 48% Test Voltage: DC 3V Test Engineer: HuangJianPing Note: For a more detailed features description, please refer to the report TB-FCC182851. Duty Cycle Condition Mode Frequency (MHz) Antenna Duty Cycle (%) Correction Factor (dB) 1/T (kHz) NVNT BLE 1Mbps 2402 Ant1 100 0 0 NVNT BLE 1Mbps 2440 Ant1 100 0 0 NVNT BLE 1Mbps 2480 Ant1 100 0 0 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 2 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Test Graphs Duty Cycle NVNT BLE 1Mbps 2402MHz Ant1 Duty Cycle NVNT BLE 1Mbps 2440MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 3 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Duty Cycle NVNT BLE 1Mbps 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 4 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Maximum Conducted Output Power Condition Mode Frequency (MHz) Antenna Conducted Power (dBm) Duty Factor (dB) Total Power (dBm) Limit (dBm) Verdict NVNT BLE 1Mbps 2402 Ant1 -11.431 0 -11.431 30 Pass NVNT BLE 1Mbps 2440 Ant1 -11.73 0 -11.73 30 Pass NVNT BLE 1Mbps 2480 Ant1 -11.794 0 -11.794 30 Pass Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 5 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Test Graphs Power NVNT BLE 1Mbps 2402MHz Ant1 Power NVNT BLE 1Mbps 2440MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 6 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Power NVNT BLE 1Mbps 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 7 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 -6dB Bandwidth Condition Mode Frequency (MHz) Antenna -6 dB Bandwidth (MHz) Limit -6 dB Bandwidth (MHz) Verdict NVNT BLE 1Mbps 2402 Ant1 0.748 0.5 Pass NVNT BLE 1Mbps 2440 Ant1 0.773 0.5 Pass NVNT BLE 1Mbps 2480 Ant1 0.818 0.5 Pass Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 8 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Test Graphs -6dB Bandwidth NVNT BLE 1Mbps 2402MHz Ant1 -6dB Bandwidth NVNT BLE 1Mbps 2440MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 9 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 -6dB Bandwidth NVNT BLE 1Mbps 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 10 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Occupied Channel Bandwidth Condition Mode Frequency (MHz) Antenna 99% OBW (MHz) NVNT BLE 1Mbps 2402 Ant1 1.032921829 NVNT BLE 1Mbps 2440 Ant1 1.042319961 NVNT BLE 1Mbps 2480 Ant1 1.06916815 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 11 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Test Graphs OBW NVNT BLE 1Mbps 2402MHz Ant1 OBW NVNT BLE 1Mbps 2440MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 12 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 OBW NVNT BLE 1Mbps 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 13 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Maximum Power Spectral Density Level Condition Mode Frequency (MHz) Antenna Max PSD (dBm) Limit (dBm) Verdict NVNT BLE 1Mbps 2402 Ant1 -20.754 8 Pass NVNT BLE 1Mbps 2440 Ant1 -21.266 8 Pass NVNT BLE 1Mbps 2480 Ant1 -21.53 8 Pass Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 14 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Test Graphs PSD NVNT BLE 1Mbps 2402MHz Ant1 PSD NVNT BLE 1Mbps 2440MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 15 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 PSD NVNT BLE 1Mbps 2480MHz Ant1 Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 16 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Band Edge Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 1Mbps 2402 Ant1 -39.53 -20 Pass NVNT BLE 1Mbps 2480 Ant1 -38.4 -20 Pass Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 17 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Test Graphs Band Edge NVNT BLE 1Mbps 2402MHz Ant1 Ref Band Edge NVNT BLE 1Mbps 2402MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 18 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Band Edge NVNT BLE 1Mbps 2480MHz Ant1 Ref Band Edge NVNT BLE 1Mbps 2480MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 19 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Conducted RF Spurious Emission Condition Mode Frequency (MHz) Antenna Max Value (dBc) Limit (dBc) Verdict NVNT BLE 1Mbps 2402 Ant1 -24.97 -20 Pass NVNT BLE 1Mbps 2440 Ant1 -24.66 -20 Pass NVNT BLE 1Mbps 2480 Ant1 -24.97 -20 Pass Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 20 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Test Graphs Tx. Spurious NVNT BLE 1Mbps 2402MHz Ant1 Ref Tx. Spurious NVNT BLE 1Mbps 2402MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 21 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Tx. Spurious NVNT BLE 1Mbps 2440MHz Ant1 Ref Tx. Spurious NVNT BLE 1Mbps 2440MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 22 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Tx. Spurious NVNT BLE 1Mbps 2480MHz Ant1 Ref Tx. Spurious NVNT BLE 1Mbps 2480MHz Ant1 Emission Shenzhen Toby Technology Co., Ltd. Report No.: TB-FCC182851 Page: 23 of 25 FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Restrict Band Condition Mode Frequency (MHz) Antenna Spur Freq (MHz) Power (dBm) Gain (dBi) E (dBuV/m) Detector Limit (dBuV/m) Verdict NVNT BLE 1Mbps 2402 Ant1 2310 -51.26 2 46 Peak 74 Pass NVNT BLE 1Mbps 2402 Ant1 2310 -61.34 2 35.92 Average 54 Pass NVNT BLE 1Mbps 2402 Ant1 2323.248 -47.47 2 49.79 Peak 74 Pass NVNT BLE 1Mbps 2402 Ant1 2369.904 -60.65 2 36.61 Average 54 Pass NVNT BLE 1Mbps 2402 Ant1 2390 -51.1 2 46.16 Peak 74 Pass NVNT BLE 1Mbps 2402 Ant1 2390 -60.78 2 36.48 Average 54 Pass NVNT BLE 1Mbps 2480 Ant1 24…

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FCC ID: 2AXGU-CH-1 TB-RF-074-1.0 Appendix V EUT Test Photographs 15C Test Setup Photo of Setup for Radiated Emission (Above 1 GHz) Photo of Setup for Radiated Emission (Below 1 GHz) -----END OF REPORT-----