2AIN9-MMA-3755AMicrophone speaker

FCC NOTICE: 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. FCC STATEMENT 1. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: ⚫ This device may not cause harmful interference, and ⚫ This device must accept any interference received, including interference that may cause undesired operation. 2. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. LOCATION OF CONTROLS: 1. : Play/pause button 2. : Previous song/decrease music volume level 3. MIC VOL: Mic volume +/-, slide switch 4. ECHO: Echo+/-, slide switch 5. VOL: Music volume +/-, slide switch 6. : Next song/increase music volume level 7. : LED lights on/off 8. : Power ON/OFF Switch; Mode Switch: Bluetooth/Micro SD card/USB reader 9. Phone holder 10. DC 5V: Micro USB charging port 11. Micro SD: Micro SD card port 12. OUT: Line-out port 13. USB: USB port POWER SOURCE: Charging the Battery: The unit has a built-in Li-ion rechargeable battery, charge it before first time use or when it is drained as follows: 1. Connect the small plug from the supplied USB Connection Cable to the Micro USB Port on the unit. 2. Connect the full-sized USB plug from the supplied USB Connection Cable to the USB Port on the Personal Computer or USB Charger (Computer and USB Charger not included) as illustrated below: 3. When charging, the Red Charging Indicator on the unit will illuminate. When finished charging, it will turn off. NOTES: 1. When charging, you can play music or sing as usual. 2. Your battery will last longer if you are following these simple guidelines for caring and storing. A. Before first time use, charge the unit approximately 4 hours until the unit is fully charged. B. Charge and store the unit within the temperature range of 5°C - 35°C (40°F - 95°F). To Computer or any USB Charger C. Do not overcharge (longer than 24 hours). Excessive charging or running the unit until battery fully drains will damage the battery. Battery life will be extended if you keep the battery fully charged. D. Battery life naturally shortens slowly over time. E. The rechargeable battery incorporated in this product is not user replaceable. BATTERY DISPOSAL WARNING! To reduce the risk of fire or burns: Do not disassemble, crush, puncture, or short external connector contacts. Use only with specified charger and player. Do not dispose of in fire or water. Do not dispose to high temperature above 60°C (140°F). Store between 0°C (32°F) and 60°C (140°F). Keep away from children. See operating instructions of this battery or product. Batteries should be recycled or disposed of as per State and Local guidelines. OPERATION: General Operation: 1. Charge the built-in Li-ion battery as previously instructed. 2. Power On 3. Long Press the Button to switch to desired playback mode. The unit will sound a prompt with your selection (see list below): Playback Modes: Voice Prompt: BT (Bluetooth) Bluetooth ready for connection USB USB Li-ion Battery Must Be Disposed Of Properly TF (Micro SD) Card Memory Card Note: If the TF (Micro SD) Card and /or USB Device has NOT been inserted into the unit, the corresponding selection will not available. 4. During playback: ⚫ Press the button to pause; press again to resume to normal playback. ⚫ Press and release the or buttons repeatedly to adjust volume level as desired. ⚫ Press and hold the or buttons repeatedly to skip tracks. 5. When finished listening, turn off Button to shut off the unit. BT MODE For first time use or re-pairing the unit to a new BT Device, follow instructions below: 1. Power on the unit and enter to BT mode as previously instructed. You will hear an audible prompt say, “Bluetooth ready for connection”. 2. Power on the external BT Device and enter to BT searching mode. Start pairing following the on-screen instructions from the external BT Device. When paired, the unit will sound a prompt “Bluetooth connected”. 3. If pairing is complete you may now play music with your external BT Device. 4. During playback: ⚫ Use the Volume Controls on the paired BT Device to adjust volume level as desired. ⚫ Using the Pause; Skip Controls on the paired BT Device to pause, skip tracks as desired. ⚫ Sing or speak to the Microphone. Then: A. Slide the MIC VOL (Microphone Volume) Control Knob on the unit to adjust the volume level of the Microphone as desired. B. Slide the ECHO (Microphone Echo Effect) Control Knob to adjust the echo effect of the Microphone as desired. C. Slide the VOL (Music Volume) Control knob to adjust the volume level of the music as desired. Note: If feedback noise (high audio frequency noise) is coming from the speaker, reduce the music volume level or reduce the microphone volume level by sliding the MIC VOL (Microphone Volume) Control Knob downward. 5. To shut off the unit, press and hold the Button on the unit. Notes: ⚫ When the external BT Device searches for th…

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Label and location

BT Antenna

Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R21051306-1E02 Page 1 of 5 RF EXPOSURE REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : GXTSONIC TECHNOLOGY (HK) LIMITED Address : FLAT/RM812, 8/F, HARRY INDUSTRIAL BUILDING 49-51 AU PUI WAN STREET FOTAN, NT, HONGKONG Equipment under Test : Microphone speaker Model No. : MMA3755, CMA3755, CS-M008A, CS-M010 Trade Mark : CRAIG, MAGNAVOX FCC ID : 2AIN9-MMA-3755A Manufacturer : SHENZHEN GXTSONIC TECHNOLOGY CO., LTD Address : 1F, Building 3, Tianxin Shuichan Industrial Park, Gushu Village, Xixiang Town, Bao`an District, Shenzhen, CHINA ■Report No.: DDT-R21051306-1E02 ■Issued Date: May 26, 2021 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R21051306-1E02 Page 2 of 5 TABLE OF CONTENTS Test report declares.......................................................................................................3 1. General information .................................................................................................................. 5 1.1. Description of Equipment ........................................................................................................ 5 1.2. Assess laboratory ..................................................................................................................... 5 2. RF Exposure evaluation .......................................................................................................... 5 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R21051306-1E02 Page 3 of 5 TEST REPORT DECLARE Standard Used: KDB447498 D01 General RF Exposure Guidance v06 We Declare: The equipment described above is assessed by Dongguan Dongdian Testing Service Co., Ltd and in the configuration assessed the equipment complied with the standards specified above. The assessed results are contained in this report and Dongguan Dongdian Testing Service Co., Ltd is assumed of full responsibility for the accuracy and completeness of these assess. After evaluation, our opinion is that the equipment In Accordance with above standard. Report No: DDT-R21051306-1E02 Date of Receipt: May 13, 2021 Date of Test: May 13, 2021 ~ May 26, 2021 Prepared By: Approved By: ____________________ _____________________ Johnny Wang/Engineer Damon Hu/EMC Manager Note: This report applies to above tested sample only. This report shall not be reproduced in parts without written approval of Dongguan Dongdian Testing Service Co., Ltd. Applicant : GXTSONIC TECHNOLOGY (HK) LIMITED Address : FLAT/RM812, 8/F, HARRY INDUSTRIAL BUILDING 49-51 AU PUI WAN STREET FOTAN, NT, HONGKONG Equipment under Test : Microphone speaker Model No. : MMA3755, CMA3755, CS-M008A, CS-M010 Trade mark : CRAIG, MAGNAVOX Manufacturer : SHENZHEN GXTSONIC TECHNOLOGY CO., LTD Address : 1F, Building 3, Tianxin Shuichan Industrial Park, Gushu Village, Xixiang Town, Bao`an District, Shenzhen, CHINA Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R21051306-1E02 Page 4 of 5 Revision history Rev. Revisions Issue Date Revised By --- Initial issue May 26, 2021 Dongguan Dongdian Testing Service Co., Ltd Report No.:DDT-R21051306-1E02 Page 5 of 5 1. General information 1.1. Description of Equipment 1.2. Assess laboratory Dongguan Dongdian Testing Service Co., Ltd. Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678, http://www.dgddt.com, Email: [email protected] 2. RF Exposure evaluation According to 447498 D01 General RF Exposure Guidance v06 The 1-g 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 [2480MHz, 4 dBm, 2.51 mW(Tune up power)] (2.51/5) ·[√2.480(GHz)] =0.79<3.0 for 1-g SAR Worse case is as below: [2480MHz, 3.95 dBm, 2.48 mW (output power)] (2.48/5) ·[√2.480(GHz)] =0.78<3.0 for 1-g SAR Then SAR evaluation is not required END OF REPORT EUT* Name : Microphone speaker Model Number : MMA3755, CMA3755, CS-M008A, CS-M010 Difference of models : Above models are identical in schematic and structure. Only the name and appearance are different for all the models, therefore the test performed on the model MMA3755. EUT function description : Please reference user manual of this device Power supply : DC 3.7V form Built-in battery, or DC 5V from AC adapter Radio Specification : Bluetooth V5.0 Operation frequency : 2402MHz-2480MHz Modulation : GFSK, /4-DQPSK Data rate : 1 Mbps, 2 Mbps Antenna Type : PCB layout antenna, maximum PK gain: -0.68 dBi Sample Type : Series production

Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21051306-1E01 Page 1 of 72 FCC CERTIFICATION TEST REPORT FOR Issued By: Dongguan Dongdian Testing Service Co., Ltd. Add: No. 17, Zongbu Road 2, Songshan Lake Sci&Tech, Industry Park, Dongguan City, Guangdong Province, China, 523808 Tel: +86-0769-38826678, E-mail: [email protected], http://www.dgddt.com Applicant : GXTSONIC TECHNOLOGY (HK) LIMITED Address : FLAT/RM812, 8/F, HARRY INDUSTRIAL BUILDING 49-51 AU PUI WAN STREET FOTAN, NT, HONGKONG Equipment under Test : Microphone speaker Model No. : MMA3755, CMA3755, CS-M008A, CS-M010 Trade Mark : CRAIG, MAGNAVOX FCC ID : 2AIN9-MMA-3755A Manufacturer : SHENZHEN GXTSONIC TECHNOLOGY CO., LTD Address : 1F, Building 3, Tianxin Shuichan Industrial Park, Gushu Village, Xixiang Town, Bao`an District, Shenzhen, CHINA ■Report No.: DDT-R21051306-1E01 ■Issued Date: May 26, 2021 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21051306-1E01 Page 2 of 72 TABLE OF CONTENTS Test report declares.......................................................................................................4 1. Summary of test results ................................................................................................ 6 2. General test information ............................................................................................... 7 2.1. Description of EUT ........................................................................................................ 7 2.2. Accessories of EUT ...................................................................................................... 8 2.3. Assistant equipment used for test ................................................................................. 8 2.4. Block diagram of EUT configuration for test ................................................................. 8 2.5. Deviations of test standard ........................................................................................... 8 2.6. Test environment conditions ......................................................................................... 8 2.7. Test laboratory .............................................................................................................. 9 2.8. Measurement uncertainty ............................................................................................. 9 3. Equipment used during test ........................................................................................ 10 4. Maximum Peak Output Power .................................................................................... 12 4.1. Block diagram of test setup ........................................................................................ 12 4.2. Limits .......................................................................................................................... 12 4.3. Test Procedure ........................................................................................................... 12 4.4. Test Result ................................................................................................................. 12 4.5. Original test data ......................................................................................................... 13 5. 20dB Bandwidth and 99% Bandwidth ......................................................................... 15 5.1. Block diagram of test setup ........................................................................................ 15 5.2. Limits .......................................................................................................................... 15 5.3. Test Procedure ........................................................................................................... 15 5.4. Test Result ................................................................................................................. 15 5.5. Original test data ......................................................................................................... 16 6. Carrier Frequency Separation ..................................................................................... 18 6.1. Block diagram of test setup ........................................................................................ 18 6.2. Limits .......................................................................................................................... 18 6.3. Test Procedure ........................................................................................................... 18 6.4. Test Result ................................................................................................................. 18 6.5. Original test data ......................................................................................................... 18 7. Number Of Hopping Channel ...................................................................................... 20 7.1. Block diagram of test setup ........................................................................................ 20 7.2. Limits .......................................................................................................................... 20 7.3. Test Procedure ........................................................................................................... 20 7.4. Test Result ................................................................................................................. 20 7.5. Original test data ......................................................................................................... 20 8. Dwell Time .................................................................................................................. 22 Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21051306-1E01 Page 3 of 72 8.1. Block diagram of test setup ........................................................................................ 22 8.2. Limits ................................…

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Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21051306-1E01 Page 61 of 72 15. Test setup photograph Dongguan Dongdian Testing Service Co., Ltd. Report No.: DDT-R21051306-1E01 Page 62 of 72