2A3OORB39PTwo Way Radio

USER’S MANUAL RB39P Contents ------------------------------------------------------------------------------01 ----------------------------------------------------------------01 ----------------------------------------------------------------------01 -----------------------------------------------------------------------02 ------------------------------------------------------------------02 ------------------------------------------------------------------------05 -----------------------------------------------------------------------05 ----------------------------------------------------------------------------06 Warranty Charging Attentions Radio Function LED indicators Optional Functions Specifications Default Setting WARNING For downloading further resources: Brochures, Software/Firmware, Manual etc, Pls contact your direct reseller first OR go to website retevis.com and check “support” in the each product link to download it. Warranty Before using the radio, please read the manual carefully. ·Don’t charge the radio in inflammable, explosive and radio-communication-banned areas (such as gas station, petrol station and airport, etc). ·Don’t operate the radio without license in the areas that government bans. ·Ensure the radio to avoid being placed under the sun and near any heat equipment. ·Ensure the radio to avoid any dusty, humid and splashy place, and avoid being placed near any heat equipment. ·If the scent is smelled or smog is seen, please take down the battery pack from the radio, then contact with the nearest retailer. ·The repairing of the radio is in the charge of professionals and the self-dismantling is strictly prohibited. Charging Attentions ·Please use the matching charger to charge. The charging interface is Type-C USB. ·Suggest turning off the radio before charging. ·To get the best battery performance, please charge the radio for at least 5 hours for the first charging. ·Don’t charge the battery pack for a long time, or it will shorten the service life of the battery pack. When fully charged, stop charging in time. ·The charger is only responsible for the battery pack of this radio, and don’t charge other battery packs. Otherwise, the charger and the battery pack will be damaged. ·When fully charged, the battery pack should be placed in cool and dry areas, but near to fire or exposed to the sun, or there will exist potential safety hazard. ·During charging, it is suggested not proceeding transmission operation. ·During charging, slight heat of the battery pack is normal. Radio Function 1.Antenna 2.Transmit button (PTT) 3.Menu/Programmable key 4.+ key: Channel + /Bluetooth 5.- key: Channel - /Emergency alarm 6.Charging port 7.Speaker 8.Microphone 9.Type-C USB charging interface 10.Audio/Data Port 11.Power/LED indicator key 01 LED Indicator Function Operation 1. Turn ON/OFF 1.1 In the off state, press the power key for 3s to turn on the radio. The current channel number and the battery power are broadcast at the same time. 1.2 In the on state, press the power key for 3s to turn off the radio and the radio makes a off prompt. 2. Volume adjustment In the standby or receiving state, shortly press the power key to adjust the radio volume and the current volume level is broadcast. 0-5 volume levels are adjustable circularly. Note: when the volume level is 0, the receiving of the radio is silent mode. 3. Transmitting/receiving 3.1 In the standby state, press PTT key to transmit signal of the current channel number and LED red indicator lights up. 3.2 Release PTT key to receive the signal of the same channel number, speaker makes a communication voice and LED green indicator lights up. Attentions: • When the radio is transmitting, keep the radio in the vertical position and the microphone 2.5-5cm away from the mouth. When transmitting, the radio is at least 2.5cm away from the head or body. • Set the receiver frequency the same as the transmitter’s before communicating. • Set the channel number, CTCSS/DCS codes of the transmitter and the the receiver are the same. 4. Channel selection In the standby state, shortly press + or - key to choose the channel and the current channel number is broadcast. 5. CTCSS/DCS This radio supports a total of 258 CTCSS/DCS. It can be set 50 CTCSS and 104*2 DCS (N and I phases) in the programming software (CPS). Green indicator flashes slowly (ON: 20ms/OFF: 5sec) Green indicator flashes slowly (ON: 200ms / OFF: 200ms) Red indicator is on Green indicator is on Red indicator flashes quickly Green indicator flashes quickly Blue indicator flashes quickly Blue indicator is on Red and Green indicator flashes Red and green lights flash alternately Green indicator double flash Red indicator double flash Standby state Scan state Transmitting Receiving Read data from the radio through operating the programming software Write data to the radio through operating the programming software. Bluetooth is pairing Bluetooth pairs successfully Delete Bluetooth pairing Charging Fully charged Low battery LED indicatorRadio Working Status 02 Press and hold for 3 seconds to turn on. 6. High/Low Power Setting The user can set the power level of each channel to high or low. High power achieves the communication with the radios over long distance and low power achieves the communication with radios in the short distance. 6.1 Power level of the channel can be set as high or low through CPS. 6.2 Power level of the channel also can be set as high or low through the menu key. • Firstly, shortly press the menu key to choose power. • Shortly press + or - key to switch RF power: high (2W) or low (0.5W). • Shortly press PTT key to exit settings and the radio enters standby state. Note: channel 8-14 is set as low power and the setting can’t be changed. 7. Bluetooth Function 7.1 Turn on Bluetooth Function • Shortly press the menu key to choose Bluetooth menu and BLUETOOTH prompt is broadcast.• Shortly press + key to turn on Bluetooth with voice prompts BLUETOOTH ON. If the Bluetoot…

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Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa, Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen, Guangdong China Email: [email protected] Tel: +86-755-23481953 Date: 2023-03-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To whom it may concern: The RF chip, model BES2300_IH, which installed in our product Two Way Radio, Model: RB39P, RB37, FCC ID:2A3OORB39P, supports BDR (GFSK), EDR (π/4-DQPSK, 8DPSK), BLE 1M and BLE 2M functions. For use in America and this chip Only support BDR (GFSK), EDR (π/4-DQPSK, 8DPSK), BLE 1M. The BLE 2M function has been shielded by the manufacturer using the software, the end user has no capability to activate it. Sincerely, Signature: Manager Dongfang Shen

CFR 47 §2.911(d)(5)(i) Attestation Letter Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa, Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen, Guangdong China Email: [email protected] Tel: +86-755-23481953 Attestation Letter Date: 2023-03-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(5)(i) Filing FCC ID: 2A3OORB39P Shenzhen Ysair Technology Co., LTD certifies that the equipment for which authorization is sought, is not “covered” equipment prohibited from receiving an equipment authorization pursuant to section 2.903 of the FCC rules. Sincerely, Signature Contact Person: Dongfang Shen Title: Manager Company Name & Address: Shenzhen Ysair Technology Co., LTD & 6/F, building 6, Yunli intelligent park, No. 3, Changfa, Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen, Guangdong China

U.S. AGENT LETTER OF ATTESTATION Date: 2023-03-30 FEDERAL COMMUNICATIONS COMMISSION Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Ref: Attestation Statements CFR 47 §2.911(d)(7) Filing FCC ID: 2A3OORB39P Shenzhen Ysair Technology Co., LTD certifies that, as of the date of the filing of the application, RETEVIS INC. is our designated U.S. agent for service of process for the above referenced FCC ID. Shenzhen Ysair Technology Co., LTD accepts to maintain an agent for no less than one year after the grantee has terminated all marketing and importation or the conclusion of any Commission-related proceeding involving the equipment. RETEVIS INC. accepts, as of the date of the filing of the application, the obligation of the designated U.S. agent for service of process for the above referenced FCC ID. Designated U.S. Agent Information: Company Name: RETEVIS INC. Address: 1733 E BROOKPORT ST, COVINA, CA 91724 FRN: 0033657701 Tel.: +1（626）3622594 Email: [email protected] Signed by (printed name): LIUYE LI Signature: Applicant: Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa, Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen, Guangdong China FRN: 0031641426 Tel: +86-755-23481953 Email: [email protected] Signed by (printed name): Dongfang Shen Signature:

Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa, Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen, Guangdong China Email: [email protected] Tel: +86 -755-23481953 QA-FR-170 -B 7/29/2014 FCC Authorization Date: 2023-03-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Agent Authorization To whom it may concern: We Shenzhen Ysair Technology Co., LTD, the undersigned, hereby authorizes China Certification ICT Co., Ltd (Dongguan) to act on its behalf in all matters relating to application for Equipment authorization, including the signing of all documents relating to these matters. All acts carried out by China Certification ICT Co., Ltd (Dongguan) on our behalf shall have the same effect as our own action. We, the undersigned, hereby certify that we are not subject to a denial of federal benefits, that includes FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. This authorization is valid until further written notice from the applicant. Sincerely Yours, Signature: Manager Dongfang Shen

Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa, Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen, Guangdong China Email: [email protected] Tel: +86-755-23481953 FCC Confidential Authorization Date: 2023-03-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Subject: Confidentiality Request regarding application for certification of FCC ID: 2A3OORB39P In accordance with Sections 0.457 and 0.459 of the Commission’s Rules, Shenzhen Ysair Technology Co., LTD hereby requests long-term confidential treatment of information accompanying this application as outlined below:  Block Diagram  Schematics  Operation Description The above materials contain proprietary and confidential information not customarily released to the public. The public disclosure of these materials provides unjustified benefits to its competitors in the market. Sincerely Yours, Signature: Manager Dongfang Shen  Parts List/Tune up procedure

Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen,Guangdong,China Email: [email protected] Tel: +86-755-23481953 Declaration of Similarity Date: 2023-03-30 FEDERAL COMMUNICATIONS COMMISSIONS Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 Dear Sir/Madam, We, Shenzhen Ysair Technology Co., LTD, hereby declare that we have a product named as Two Way Radio, (model: RB39P, FCC ID: 2A3OORB39P) was tested by China Certification ICT Co., Ltd (Dongguan), Meanwhile, for our marketing purpose, we would like to list a series model (RB37) on reports and certificate, all the models are identical in mainboard and all the components, Only the model name is different. We confirm that all information above is true, and we'll be responsible for all the consequences. Please contact me if you have any question. Sincerely, Signature: Manager Dongfang Shen

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS

Size: 41.5*24.7mm M teriaal: PET Background: White Text: Black S i er al No. printing by vendor pru ood cti l e.in n Customer model: RB39P TITLE: Radio label and SN Format ModelRB39P Output Power2W FrequencyFRS S/N:2203R0391100001 Two Way Radio MADE IN CHINA Shenzhen Ysair Technology Co.,Ltd. ModelRB39P Output Power2W FrequencyFRS S/N:2203R0391100001 Two Way Radio MADE IN CHINA Shenzhen Ysair Technology Co.,Ltd. FCC ID:2A3OORB39P FCC ID:2A3OORB39P

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS FRS Antenna Bluetooth Antenna

China Certification ICT Co., Ltd (Dongguan) Report No.: CR230309470-00B Page 42 of 42 5. RF EXPOSURE EVALUATION 5.1 Applicable Standard According to§15.247(i) and §1.1310, systems operating under the provisions of this section shall be operated in a manner that ensure that the public is not exposed to radio frequency energy level in excess of the Commission’s guideline. According to KDB447498 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)] ꞏ [√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 • 3.0 and 7.5 are referred to as the numeric thresholds in the step 2 below The test exclusions 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 according to 5) in section 4.1 is applied to determine SAR test exclusion. 5.2 Measurement Result For BLE: The max conducted power including tune-up tolerance is 8.0 dBm (6.31 mW). [(max. power of channel, mW)/(min. test separation distance, mm)][√f(GHz)] =6.31/5*(√2.480) = 2.0< 3.0 Result: Compliant. The stand-alone SAR evaluation is not necessary. ===== END OF REPORT ====

. (MHz) 240024502500 2.11.21.8 (MHz) 240024502500 -8.8-18.3-10.4 BT antenna related data Frequency standing wave Return loss BT passive data Frequency Model No.:RB39P Manufacturer:Shenzhen Ysair Technology Co., LTD Address:6/F, building 6, Yunli intelligent park, No. 3, Changfa Middle Road, Yangmei community, Bantianstreet, Longgang District, Shenzhen,Guangdong,China . FreqEffiGain (MHz)(%)(dBi) 240044.921.46 241045.711.48 242042.351.05 243047.771.47 244048.741.49 245047.281.28 246043.760.99 247042.181.08 248043.241.45 249042.751.44 250047.992.08 BT antenna related data BT passive efficiency Antenna Photo

TEST REPORT Applicant: Shenzhen Ysair Technology Co., LTD Address: 6/F, building 6, Yunli intelligent park, No. 3, Changfa Middle Road, Yangmei community, Bantian street, Longgang District, Shenzhen,Guangdong,China FCC ID: 2A3OORB39P Product Name: Two Way Radio Standard(s): 47 CFR Part 15, Subpart C(15.247) ANSI C63.10-2013 KDB 558074 D01 15.247 Meas Guidance v05r02 The above equipment has been tested and found compliant with the requirement of the relative standards by China Certification ICT Co., Ltd (Dongguan) Report Number: CR230309470-00B Date Of Issue: 2023/3/31 Reviewed By: Sun Zhong Title: Manager Test Laboratory: China Certification ICT Co., Ltd (Dongguan) No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China Tel: +86-769-82016888 China Certification ICT Co., Ltd (Dongguan) Report No.: CR230309470-00B Page 2 of 42 Test Facility The Test site used by China Certification ICT Co., Ltd (Dongguan) to collect test data is located on the No. 113, Pingkang Road, Dalang Town, Dongguan, Guangdong, China. The lab has been recognized as the FCC accredited lab under the KDB 974614 D01 and is listed in the FCC Public Access Link (PAL) database, FCC Registration No. : 442868, the FCC Designation No. : CN1314. The lab has been recognized by Innovation, Science and Economic Development Canada to test to Canadian radio equipment requirements, the CAB identifier: CN0123. Declarations China Certification ICT Co., Ltd (Dongguan) is not responsible for the authenticity of any test data provided by the applicant. Data included from the applicant that may affect test results are marked with a triangle symbol “▲”. Customer model name, addresses, names, trademarks etc. are not considered data. Unless otherwise stated the results shown in this test report refer only to the sample(s) tested. This report cannot be reproduced except in full, without prior written approval of the Company. This report is valid only with a valid digital signature. The digital signature may be available only under the Adobe software above version 7.0. This report may contain data that are not covered by the accreditation scope and shall be marked with an asterisk “★”. China Certification ICT Co., Ltd (Dongguan) Report No.: CR230309470-00B Page 3 of 42 CONTENTS T EST FACILITY .......................................................................................................................................... 2 DECLARATIONS .......................................................................................................................................... 2 DOCUMENT REVISION HISTORY .......................................................................................... 5 1. GENERAL INFORMATION .................................................................................................... 6 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................... 6 1.2 DESCRIPTION OF TEST CONFIGURATION ........................................................................................... 7 1.2.1 EUT Operation Condition: ............................................................................................................................. 7 1.2.2 Support Equipment List and Details .............................................................................................................. 7 1.2.3 Support Cable List and Details ...................................................................................................................... 7 1.2.4 Block Diagram of Test Setup ......................................................................................................................... 7 1.3 MEASUREMENT UNCERTAINTY .......................................................................................................... 9 2. SUMMARY OF TEST RESULTS .......................................................................................... 10 3. REQUIREMENTS AND TEST PROCEDURES .................................................................. 11 3.1 AC LINE CONDUCTED EMISSIONS .................................................................................................... 11 3.1.1 Applicable Standard ..................................................................................................................................... 11 3.1.2 EUT Setup.................................................................................................................................................... 12 3.1.3 EMI Test Receiver Setup ............................................................................................................................. 12 3.1.4 Test Procedure ............................................................................................................................................. 13 3.1.5 Corrected Amplitude & Margin Calculation ................................................................................................ 13 3.2 RADIATION SPURIOUS EMISSIONS .................................................................................................... 14 3.2.1 Applicable Standard ..................................................................................................................................... 14 3.2.2 EUT Setup.................................................................................................................................................... 14 3.2.3 EMI Test Receiver & Spectrum Analyzer Setup ......................................................................................... 15 3.2.4 Test Procedure ............................................................................................................................................. 15 3.2.5 Corrected Amplitude & Margin Calculation ................................................................................................ 15 3.3 6 DB EMISSION BANDWIDTH: ................................................…

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EXHIBIT D - TEST SETUP PHOTOGRAPHS Conducted Emissions Front View Conducted Emissions Side View Radiated Emission Below 1GHz View Radiated Emission Above 1GHz View