2A4C5-R-61Speaker

R-61 Instruction Manual Safety Precautions **Read these safety instructions before using your device and store them for possible future reference.** • The device is not intended for use by people (including children) with reduced physical, sensory, or mental capacity. People who have not read the manual, unless they have received explanations by a person responsible for their safety and supervision should not use this unit. • Children should be monitored to ensure that they do not play with the device. • The device should be always be readily accessible. • The device should not be exposed to dripping or splashing water. • The device should remain dry and in a dry environment. (not water proof) • Open flames sources should not be placed on or near this device. • The device is intended for use only in a temperate climate. • At full volume, prolonged listening to the portable audio device may damage the user’s hearing and cause hearing troubles. (temporary or permanent deafness, hearing drone, tinnitus, hyperacusis). So we recommend not to listen to the portable device at high audio volume and no more than one hour per day at medium audio volume. • CAUTION: Danger of explosion if battery is incorrectly replaced or not replaced by the same type or equivalent. • The battery should not be exposed to excessive heat such as sunshine, fire, or similar. • Different types of battery, new and used batteries should not be mixed. • The battery must be installed according to polarity. • If the battery is worn, it must be removed from the product. • The battery must be disposed safely to protect the environment. • The battery can’t be replaced by the use, but only by the maker of this product. SWITCH OFF IN RESTRICTED AREAS Switch the device off where the use of the device is not allowed or where there is risk of causing interference or danger, for example: on aircraft, near medical equipment, fuel, chemicals or blasting sites. 123 Specifications ROAD SAFETY COMES FIRST Check the current laws and regulations regarding the use of this device in the areas where you drive. • Do not handle the device when driving. • Concentrate full on the driving. Radio signals could affect some of the car’s electronic systems such as the audio stereo and alarm systems. INTERFERENCE • All wireless devices are susceptible to interference which may affect their performance. • All our device conform to international standards and regulations, and if need be national ones, with a view to limiting user exposure to electromagnetic fields. These standards and regulations were adopted after the completion of extensive scientific research. This research established no link between the use of the mobile headset and any adverse effects on the health if the device is used in accordance with standard practices. Rated Voltage: DC 5v 1A Li-ion Battery 1200 mAh Sound Power: 5w*2 Frequency Range: 20hz-20khz Bluetooth Version: 5.0 Distance Range of Bluetooth: 10m Music Play Time: 2-3 hours (75%) Charging Time: 3-4 hours Dimensions: 200 * 83 * 95mm Weight: 630g Accessories Included: 1x USB cable • 1x audio cable • 1x user’s manual Charging the Product NOTE: THE INTERNAL BATTERY MUST BE FULLY CHARGED BEFORE FIRST USE OF THE SPEAKER. • To charge the battery, insert the micro-USB connector of the USB cable into the charging input hole and then plug the USB connector into either the USB port on a computer or into a compatible USB wall charger (not included) to charge through a standard wall outlet. • The red LED indicator lights up during charging and will automatically go off when charging is complete. • NOTE: When battery is low, the speaker will alarm, even while music is playing. • Fully charge the battery as advised above to resume normal operation. • Once the speaker has been charged, switch the device on by holding the on/ off button. ACCESSORIES Only use batteries, chargers and other accessories which are compatible with this equipment. Do not connect incompatible products. CHILDREN Keep your device in a safe place, out of the reach of young children. The device contains small parts that may present a choking hazard. 4 56 7 8 9 10 M 1. (M) Mode Switch (Between wireless/TF/USB/Aux-In/FM). 2. Short press for previous track, long press to reduce the volume. 3. Short press for next track, long press to increase the volume. 4. Short press for Play/Pause. In FM mode, long press will auto search FM radio. 5. Power On/Off 6. Indicator 7. Charging Port 8. TF Micro Card Slot 9. USB Port 10. Line-in Port **Mode Switch (not mute)** BLUETOOTH CONNECTION 1. Switch the power button to turn on the speaker. The blue LED flashes, the speaker enters Bluetooth pairing mode. 2. On your mobile device, enable Bluetooth, search and select “R-61” to pair. After paired, the blue LED lights up continuously. 3. If battery has low power, the speaker will warn you with sound alarm. 4. Charging Bluetooth: Connect the included USB cord to either a USB port on your computer or a DC 1A adaptor (not included). 5. When charging: The red LED light is on. When charging is complete, the red LED light turns off. FM RADIO MODE 1. Press the “M” button to switch to FM radio mode. 2. Press 3 seconds the pause button in FM mode to search and store FM radio stations automatically. 3. If radio reception is poor, connect an AUX cable to work as an antenna. MICRO TF CARD/ USB STICK MODE 1. Connect a Micro TF card or USB stick. Play starts automatically. 2. Supports MP3 format. 3. Press the “M” button to switch between Micro TF card/USB stick, FM radio and Bluetooth mode. LISTEN TO AN EXTERNAL DEVICE 1. Use the supplied 3.5mm AUX cable; connect the speaker to an external device. 2. Press the “M” Button to switch to AUX mode. HAND-FREE CALL 1. When a call comes, press briefly the “Pause” button to answer. Press and hold the “Pause” button to reject the call. 2. During the call, briefly press the “Pause” button to hang up. FRONT BACK FCC Statement: This device complies with part 15 of the…

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Cosmo Fiber Corp. Agent Authorization Letter 2022-02-23 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen Most Technology Service Co., Ltd. to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Name: Mr Sidney Ru Position: CEO Company Name: Cosmo Fiber Corp. Address: 1802 Santo Domingo Ave Duarte, CA 91010 United States Tel / Fax (800) 366-1600/N/A E-Mail: [email protected]

Cosmo Fiber Corp. Long Term Confidentiality Request Letter 2022-02-23 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR (FCC ID: 2A4C5-R-61) To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - e.g. Block diagram - e.g. SCH - e.g. Operational Description required to be submitted with this application be permanently withheld from public review. The above documents are company proprietary information that could never get into the possession of your competition. Please contact me if there is any information you may need. Sincerely, Name: Mr Sidney Ru Position: CEO Company Name: Cosmo Fiber Corp. Address: 1802 Santo Domingo Ave Duarte, CA 91010 United States Tel / Fax (800) 366-1600/N/A E-Mail: [email protected]

Model difference letter 2022.02.28 Dear MET Reviewer, This is a new Application from Cosmo Fiber Corp. Model No.: R-61, LZYX-20121-1 Use R-61 for all tests.Only the model name is different. Thank you for your cooperation! Yours sincerely, Signatory: Name: Mr Sidney Ru Position: CEO Company Name: Cosmo Fiber Corp. Address: 1802 Santo Domingo Ave Duarte, CA 91010 United States Tel / Fax (800) 366-1600/N/A E-Mail: [email protected]

Model No.: R-61 FRONT VIEW OF SAMPLE BACK VIEW OF SAMPLE Model No.: R-61 LEFT VIEW OF SAMPLE RIGHT VIEW OF SAMPLE Model No.: R-61 TOP VIEW OF SAMPLE BOTTOM VIEW OF SAMPLE Model No.: R-61 OVERALL OF SAMPLE

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Speaker FCC ID:2A4C5-R-61 Model :R-61 Power Supply：DC3.7V by Battery/ DC 5V(by USB) Made In China 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 SIZE :300MM*800MM Speaker FCC ID:2A4C5-R-61 Model : LZYX-20121-1 Power Supply：DC3.7V by Battery/ DC 5V(by USB) Made In China 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

Model No.: R-61 Page 1 of 3 INTERNAL PHOTO OF SAMPLE PCB INTERNAL PHOTO OF SAMPLE PCB Model No.: R-61 Page 2 of 3 INTERNAL PHOTO OF SAMPLE PCB INTERNAL PHOTO OF SAMPLE PCB Model No.: R-61 Page 3 of 3 BATTERY

Shenzhen Most Technology Service Co., Ltd. No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, G uangdong, China. RF Exposure Evaluation Report Report Reference No. ..................... : FCC ID.. .......................................... : MTWG22020055-H 2A4C5-R-61 Compiled by ( position+printed name+signature) .. : File administrators Alisa Luo Supervised by ( position+printed name+signature) .. : Test Engineer Sunny Deng Approved by ( position+printed name+signature) .. : Manager Yvette Zhou Date of issue ..................................... : February 22,2022 Representative Laboratory Name .: Shenzhen Most Technology Service Co., Ltd. Address ............................................ : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Pa rk, Nan shan, Shenzhen, Guangdong, China. Applicant’s name ............................ : Cosmo Fiber Corp. Address ............................................ : 1802 Santo Domingo Ave, Duarte, California, United States Test specification/ Standard ..........: 47 CFR Part 1.1307 47 CFR Part 2.1093 TRF Originator .................................. : Shenzhen Most Technology Service Co., Ltd. Shenzhen Most Technology Service Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Most Technology Service Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Most Technology Service 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. Test item description ..................... : Speaker Trade Mark ....................................... : N/A Manufacturer .................................... : NINGBO SC-STARMAX IMP. & EXP. CO.,LTD. Model/Type reference....................... : R-61 Listed Models .................................. : LZYX-20121-1 Modulation Type ............................... : GFSK, π/4DQPSK, 8DPSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version .............................. V1.1.1 Software Version ............................... V00 Rating ............................................... : DC3.7V by Battery DC 5V(by USB ) Result................................................ : PASS Report No.: MTWG22020055-H Page 2 of 6 T E S T R E P O R T Equipme nt under Test : Speaker Model /Type : R-61 Listed Models : LZYX-20121-1 Remark Only the model name is different. Applicant: Cosmo Fiber Corp. Address: 1802 Santo Domingo Ave, Duarte, California, United States Manufacturer: NINGBO SC-STARMAX IMP. & EXP. CO.,LTD. Address: 15F, MU Group, Building B16 (West Area), No.2560 Yongjiang Avenue, Yinzhou District, Ningbo, China. 315048 Test Result:PASS The test re port merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: MTWG22020055-H Page 3 of 6 1. Revision History Revision Issue Date Revisions Revised By 002022-02-22Initial IssueAlisa Luo Report No.: MTWG22020055-H Page 4 of 6 2. SAR Evaluation 2.1 RF Exposure Compliance Requirement 2.1.1 Standard Requirement According to KDB447498D01 General RF Exposure Guidance v06 4.3.1. Standalone SAR test exclusion considerations Unless specifically required by the published RF exposure KDB procedures, standalone 1-g head or body and 10-g extremity SAR evaluation for general population exposure conditions, by measurement or numerical simulation, is not required when the corresponding SAR Exclusion Threshold condition, listed below, is satisfied. 2.1.2 Limits 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 The test excl usions are applicable only when the minimum test separation distance is ≤ 50 mm and for transmission frequencies between 100 MHz and 6 GHz. When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion Report No.: MTWG22020055-H Page 5 of 6 2.1.3 EUT RF Exposure Measurement Data BLE GFSK Test channel Peak Output Power (dBm) Tu ne up tolerance (dBm) Maximum tune-up Power (dBm) (m W) Lowest(2402MHz) -5.30 -5.30±1 -4.300.372 Middle(2440MHz) -6.10 -6.10±1 -5.100.310 Highest(2480MHz) -6.35 -6.35±1 -5.350.292 Worst case: GFSK Channel M aximum Peak Conducted Output Power (dBm) Maximum tune-up Power Calculated val ue Exclusi on threshold SAR Test Exclusion (dBm) (m W) Highest(2402MHz)-5.30-4.30 0.372 0.1153.0Yes Report No.: MTWG22020055-H Page 6 of 6 EDR GFSK Test channel Peak Output Powe r (dBm) Tu ne up tolerance (dBm) Maximum tune-up Power (dBm) (mW ) Lowest(2402MHz) -5.105 -5.105±1 4.1050.389 Middle(2441MHz) -6.124 -6.124±1 -5.1240.307 Highest(2480MHz) -6.019 -6.019±1 -5.0190.315 π/4DQPSK Test channel Peak Output Powe r (dBm) Tu ne up tolerance (dBm) Maximum tune-up Power (dBm) (mW ) Lowest(2402MHz) -5.885 -5.885±1 -4.8850.325 Middle(2441MHz) -7.029 -7.029±1 -6.0290.250 Highest(2480MHz) -7.052 -7.052±1 -6.0520.248 8DPSK Test channel Peak Output Powe r (dBm) Tu ne up tolerance (dBm) Maximum tune-up Power (dBm) (mW ) Lowest(2402MHz) -5.890 -5.890±1 -4.8900.324 Middle(2441MHz) -7.012 -7.012±1 -6.0120.251 Highest(2480MHz) -7.035 -7.035±1 -6.0350.249 Worst case: GFSK Channel Ma ximum Peak Conducted Output Power (dBm) Maximum tune-up Power Calculated val u e Exclusio n threshold SAR Test Exc lusion (dBm) (mW ) Highest(2402MHz) -5.105 -4.105 0.389 0.121 3.0 Yes .......................THE END OF REPORT.........................

Shenzhen Most Technology Service Co., Ltd. No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. TEST REPORT FCC Rules Part 15.247 Report Reference No. .....................: FCC ID.. .......................................... : MTWG22020055-R1 2A4C5-R-61 Compiled by ( position+printed name+signature) .. : File administrators Alisa Luo Supervised by ( position+printed name+signature) .. : Test Engineer Sunny Deng Approved by ( position+printed name+signature) .. : Manager Yvette Zhou Date of issue ..................................... : February 22,2022 Representative Laboratory Name .: Shenzhen Most Technology Service Co., Ltd. Address ............................................ : No.5, 2nd Langshan Road, North District, Hi-tech Industrial Park, Nanshan, Shenzhen, Guangdong, China. Applicant’s name ............................ : Cosmo Fiber Corp. Address ............................................ : 1802 Santo Domingo Ave, Duarte, California, United States Test specification/ Standard ..........: FCC Rules Part 15.247 TRF Originator .................................. : Shenzhen Most Technology Service Co., Ltd. Shenzhen Most Technology Service Co., Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen Most Technology Service Co., Ltd. is acknowledged as copyright owner and source of the material. Shenzhen Most Technology Service 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. Test item description ..................... : Speaker Trade Mark ....................................... : N/A Manufacturer .................................... : NINGBO SC-STARMAX IMP. & EXP. CO.,LTD. Model/Type reference....................... : R-61 Listed Models .................................. : LZYX-20121-1 Modulation Type ............................... : GFSK, π/4DQPSK, 8DPSK Operation Frequency ........................ : From 2402MHz to 2480MHz Hardware Version .............................. V1.1.1 Software Version ............................... V00 Rating ............................................... : DC3.7V by Battery DC 5V(by USB ) Result................................................ : PASS Report No.: MTWG22020055-R1 Page 2 of 42 T E S T R E P O R T Equipment under Test : Speaker Model /Type : R-61 Listed Models : LZYX-20121-1 Remark Only the model name is different. Applicant : Cosmo Fiber Corp. Address : 1802 Santo Domingo Ave, Duarte, California, United States Manufacturer : NINGBO SC-STARMAX IMP. & EXP. CO.,LTD. Address : 15F, MU Group, Building B16 (West Area), No.2560 Yongjiang Avenue, Yinzhou District, Ningbo, China. 315048 Test Result: PASS The test report merely corresponds to the test sample. It is not permitted to copy extracts of these test result without the written permission of the test laboratory. Report No.: MTWG22020055-R1 Page 3 of 42 Contents 1 REVISION HISTORY ................................................................ 4 2 TEST STANDARDS .................................................................. 5 3 SUMMARY ............................................................................. 6 3.1 General Remarks 6 3.2 Product Description 6 3.3 Equipment Under Test 6 3.4 Short description of the Equipment under Test (EUT) 6 3.5 EUT operation mode 7 3.6 Block Diagram of Test Setup 7 3.7 Test Item (Equipment Under Test) Description* 7 3.8 Auxiliary Equipment (AE) Description 7 3.9 Antenna Information* 7 3.10 Related Submittal(s) / Grant (s) 8 3.11 Modifications 8 4 TEST ENVIRONMENT ............................................................... 9 4.1 Address of the test laboratory 9 4.2 Environmental conditions 9 4.3 Summary of measurement results 10 4.4 Statement of the measurement uncertainty 10 4.5 Equipments Used during the Test 11 5 TEST CONDITIONS AND RESULTS ............................................ 12 5.1 AC Power Conducted Emission 12 5.2 Radiated Emission 15 5.3 Maximum Peak Output Power 21 5.4 20dB Bandwidth 22 5.5 Frequency Separation 25 5.6 Number of hopping frequency 28 5.7 Time of Occupancy (Dwell Time) 30 5.8 Spurious RF Conducted Emission 33 5.9 Pseudorandom Frequency Hopping Sequence 39 5.10 Antenna Requirement 40 6 TEST SETUP PHOTOS OF THE EUT .......................................... 41 7 PHOTOS OF THE EUT ............................................................. 42 Report No.: MTWG22020055-R1 Page 4 of 42 1 Revision History Revision Issue Date Revisions Revised By 00 2022-02-22 Initial Issue Alisa Luo Report No.: MTWG22020055-R1 Page 5 of 42 2 TEST STANDARDS The tests were performed according to following standards: FCC Rules Part 15.247 : Frequency Hopping, Direct Spread Spectrum and Hybrid Systems that are in operation within the bands of 902-928 MHz, 2400-2483.5 MHz, and 5725-5850 MHz. ANSI C63.10-2013 : American National Standard for Testing Unlicensed Wireless Devices Report No.: MTWG22020055-R1 Page 6 of 42 3 SUMMARY 3.1 General Remarks Date of receipt of test sample : 2022.02.09 Testing commenced on : 2022.02.09 Testing concluded on : 2022.02.22 3.2 Product Description Product Name: Speaker Model/Type reference: R-61 Power Supply： DC3.7V by Battery DC 5V(by USB) Testing sample ID： MT22020025 Bluetooth : Supported Type: Bluetooth BR/EDR Modulation: GFSK, π/4DQPSK, 8DPSK Operation frequency: 2402MHz~2480MHz Channel number: 79 Channel separation: 1MHz Antenna type: PCB antenna Antenna gain: -0.58dBi 3.3 Equipment Under Test Power supply system utilised Power supply voltage : ○ 230V / 50 Hz ○ 120V / 60Hz ○ 12 V DC ○ 24 V DC ● Other (specified in blank below) DC3.7V by Battery DC 5V(by USB) 3.4 Short description of the Equipment under Test (EUT) This is a Speaker Device For more details, refer to the user’s manual of the EUT. Report No.: MTWG22020055-R1 Page 7 of 42 3.5 EUT opera…

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Model No.: R-61 RE TEST SETUP Model No.: R-61 CE TEST SETUP