A4E-REMO4ARemo4 Audio System with Bluetooth

Safety Warning Thank you for using our Remo4 Bluetooth sound system! Before using this unit please, read the manual. This audio system was for indoor use only. Do not place the apparatus in direct sunlight or heat. This apparatus should be placed on a stable sur face. Tr ying to remove panels or repairing the unit by yourself could result in an electric shock. This item should be connected to an AC 100V-240V Power outlet. Do not use chemicals on this product. Do not press the buttons too hard, it may damage the product. Do not attempt to repair this product as the warranty will be void, please contact with the store or customer ser vice. Product NO. PARTS QTY. ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ Speaker：3”4Ω10W C05 control box The extention cable of speaker：L=1000mm Speaker inner grill Screw：KA3*16mm Screw：PA3.5*15 Speaker grill Speaker grill fix Speaker grill fix cover 1PCS 2PCS 4PCS 2PCS 2PCS 8PCS 8PCS 2PCS 2PCS Basic operation 1. Once power is supplied, the Remo4 bluetooth audio kit begins to search pairing device automatically. It keeps searching until it pairs with other device successfully. It could only pair with one bluetooth device. If you want to pair with another device, disconnect the paired one, then connect with the new one. 2．The Remo4 Bluetooth audio kit could be controlled via the paired bluetooth. Previous track/ Next track, Increase volume/ Decrease volume, Pause / Play. 3．Description of bluetooth：eMoMo Remo4 4．Bluetooth reproduction rang: 8m. Specification Output 8W*2 Signal to noise ratio Speaker Blutooth Edition ≥68dB 3"4Ω 10W * 2 5.0 Frequently Asked Qustions The volume switch is on minimum; the unit is not set to the correct function; please contact with the store or customer service. Problem Possible cause and correction or maintenance No sound at all Please close all other pairing machines and retry; Please wait a few seconds or restart the machine; Do not pair the devices behind a wall or in corner, please keep the working space within 8 meters; Pair the device named eMoMo Remo4. Bluetooth can not pair FCC Warning 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. NOTE 1: 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. NOTE 2: Any changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. RF exposure statement This equipment complies with the FCC radiation exposure limits set forth for an uncontrolled environment. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. 操作说明 序号 部件名称及描述 用量 ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ 全频副机喇叭组件：3”4Ω10W C05控制盒 副机喇叭延长线：L=1000mm 4寸副机网，黑色 二类螺丝：KA3*16mm，配⑨ 三类螺丝：PA3.5*15，配① 4寸副机铁网 副机铁网压块 副机网面盖 2PCS 2PCS 4PCS 2PCS 2PCS 8PCS 8PCS 2PCS 2PCS 1．通电后蓝牙自动开启搜索状态，在未配对蓝牙设备时一直处于被搜索状态，当配 对后，不能再与其它蓝牙设备匹配。只能在已配对的蓝牙设备断开后才可与其它 蓝牙设备匹配。 2．已配对的蓝牙设备可对本机进行控制:上/下曲的选择，高低音的调节，暂停、播 放的控制。 3．本机蓝牙名称： eMoMo Remo4. 4．本机在长期通电情况下不会进入休眠状态。 5．蓝牙的有效距离为≥8米。 规格说明 输入电源 29V 功放输出功率 喇叭参数 蓝牙版本 8W*2 3"4Ω 10W*2 蓝牙 5.0 维修指南及疑难解答 源文件音量太低或音响没连接好。在确保操作正确以后仍然没有 声音的话需要更换音响系统。 问 题 可能产生的原因及解决方法 没声音 请检查电源是否连接好,连接好电源或更换电源 请关闭其他所有已经配对的蓝牙设备，重新开启音响系统及蓝牙 发射设备并搜索配对。 请不要隔墙或在拐角处使用。 蓝牙不能配对 注意事项 在使用之前,请先阅读说明书,以确保您能正确使用此产品。 请保存此说明书以备将来查阅。 为了更好的服务客户,产品的性能和规格有可能发生变更,所以本用户手册的内容可能随之更新, 将不做另行通知。 为了维护良好的性能,请勿在太冷 、太热、多尘或潮湿的地方使用，如下 情况更需注意： 1.潮湿或水下作业环境 2.加热器或高温作业环境 3.暴晒于阳光下的环境 4.容易跌落的环境 5.请勿擅自拆开组合音响，否则会失去保修的权利 产品介绍

eMoMo Technology Co., Ltd Fourth Floor, Yonghe Building, Taiwan Industrial P, Shiyan, Baoan, Shenzhen,Guangdong, China --------------------------------------------------------------------------------------------------------------------- Date: 2022-08-23 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 FCC ID: A4E-REMO4A Confidentiality Request To whom it may concern, Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, we hereby request confidential treatment of the information accompanying this application as outlined below: ☒ Block Diagram ☐ Tune-Up Information ☒ Operational Description ☐ Security Information ☒ Schematics ☐ Software Defined Radio (SDR) Information ☐ Parts List The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these materials may be harmful to the applicant and provide unjustified benefits to its competitors. The applicant understands that pursuant to Section 0.457 of the Rules, disclosure of this application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, eMoMo Technology Co., Ltd ------------------------------- (Rosary Tang) (Manager)

eMoMo Technology Co., Ltd Fourth Floor, Yonghe Building, Taiwan Industrial P, Shiyan, Baoan, Shenzhen,Guangdong, China --------------------------------------------------------------------------------------------------------------------------------------- Product Name: eMoMo Technology Co., Ltd FCC ID: A4E-REMO4A Model No.: Remo4, Remo4.2 Model Declaration Letter Dear Regulatory Authority, Model(s): Remo4.2 are same to the model Remo4, these models are same PCB Layout, Schematics, BOM. Only for different model name and appearances for different market require. Sincerely yours, Signature Rosary Tang/Boss Date: 2022-08-23

eMoMo Technology Co., Ltd Fourth Floor, Yonghe Building, Taiwan Industrial P, Shiyan, Baoan, Shenzhen,Guangdong, China -------------------------------------------------------------------------------- (FCC ID：A4E-REMO4A) POWER OF ATTORNEY DATE: 2022-08-23 Federal Communications Commission Authorization and Evaluation Division 7435 Oakland Mills Road Columbia, MD 21046 To Whom It May Concern: We, the undersigned, hereby authorize Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So on our behalf, to apply to the Federal Communications Commission on our equipment. Any and all acts carried out by Waltek Testing Group (Shenzhen) Co., Ltd. Jandy So on our behalf shall have the same effect as acts of our own. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. We, eMoMo Technology Co., Ltd are not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 USC853a, and no party to the application is subject to a denial of federal benefits pursuant to that section. Sincerely, eMoMo Technology Co., Ltd ------------------------------- (Rosary Tang) (Manager)

Reference No.: WTX22X08163840W Page 2 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 2 - EUT EXTERNAL PHOTOGRAPHS EUT View 1 EUT View 2 Reference No.: WTX22X08163840W Page 3 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 3 EUT View 4 Reference No.: WTX22X08163840W Page 4 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 5 EUT View 6 Reference No.: WTX22X08163840W Page 5 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EUT View 7

Reference No.: WTX22X08163840W Page 1 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn ANNEX EXHIBIT 1 - PRODUCT LABELING Proposed FCC ID Label Format Specifications: Size: 68.8mm x 38.7mm. The label shall be securely affixed to a permanently attached part of the device, in a location where it is visible or easily accessible to the user, and shall not be readily detachable. The label shall be sufficiently durable to remain fully legible and intact on the device in all normal conditions of use throughout the device’s expected lifetime. Proposed Label Location on EUT FCC ID Label Location

Reference No.: WTX22X08163840W Page 6 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 3 - EUT INTERNAL PHOTOGRAPHS EUT Housing and Board View 1 Solder Board-Component View 1 Reference No.: WTX22X08163840W Page 7 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Solder Board-Component View 2 Antenna View

RF Exposure Requirements Product Description: Remo4 Audio System Model No.: Remo4, Remo4.2 FCC ID: A4E-REMO4A According to the KDB 447498 D01 v06 section 4.3.1, for 100 MHz to 6 GHz and test separation distances ≤ 50 mm, the 1-g and 10-g SAR test exclusion thresholds are determined by the following: [(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 Calculation Result: Tx frequency range: 2402-2480MHz Min. test separation distance: 5mm Maximum Conducted Output Power: 1.88dBm Tune-Up output power: 2.0dBm RF channel transmit frequency: 2402MHz Result: 0.5 Limit: 3.0 The exclusion thresholds is 0.5 < 3, so the transmitter complies with the RF exposure requirements and the SAR is not required.

N c v NOTE: This doc company. The te validation and in MORLA App PRO MO TRA BRA STA REC TES ISS cument is issue est results appl nformation confi AB SHENZ FL1-3, B Block67 plicant ODUCT NA ODEL NAM ADE NAM AND NAM ANDARD(S CEIPT DAT ST DATE SUE DATE ed by MORLAB y only to the pa rmed at our we ZHEN MORLAB COM Building A, FeiYang S 7, BaoAn District, She TE : AME : ME : E : ME : S) : ATE : : : B, the test repo articular sample bsite. MMUNICATIONS TEC Science Park, No.8 L enZhen , GuangDon EST SHANGHA MV_BP10 MV_BP10 MVSILICO MVSILICO ANSI/IEEE 2019-08-3 2019-09-0 2019-10-1 Edited Approved rt shall not be e(s) tested and CHNOLOGY Co., Ltd LongChang Road, g Province, P. R. Ch T RE AI MOUNT 0xx PCB An 0 ON ON E Std 149- 30 02 15 d by: by: reproduced exc to the specific d. ina Te l : 8 Http:/ RE EPOR TAIN VIEW ntenna -2008 Chi Sh Andy Yeh cept in full with tests carried o u 86-755-36698555 //www.morlab.cn EPORT No RT W SILICON ide(Rappo h(Technica out prior written ut which is avai Fax: 86-755-3669 E-mail: service@ o.：SZ190 CO,. LTD orteur) l Director) n permission of lable on reques 98525 @morlab.cn Page 1 of 1 080340E01 f the st for 4 1 MORLAB SHENZHEN MORLAB COMMUNICATIONS TECHNOLOGY Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 2 of 14 REPORT No.：SZ19080340E01 DIRECTORY 1. Technical Information ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3 1.1. Manufacturer and Factory Information ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3 1.2. Equipment Under Test (EUT) Description ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3 2. Test Results ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4 2.1. Applied Reference Documents ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4 2.2. Test Conditions ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4 2.3. Test Results lists ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4 Annex A Photographs ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 6 Annex B Figures ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 7 1. 2D Radiation Pattern ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 7 2. 3D Radiation Pattern ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9 3. Return Loss ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 10 4. VSWR ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 11 5. Input Impedance ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 11 Annex C Photographs ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 12 Annex D General Information ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 14 1.1 Identification of the Responsible Testing Laboratory ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 14 1.2 Identification of the Responsible Testing Location ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 14 1.3 Test Equipments Utilized ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 14 Change History Version Date Reason for change 1.0 2019-10-15 First edition MORLAB SHENZHEN MORLAB COMMUNICATIONS TECHNOLOGY Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 3 of 14 REPORT No.：SZ19080340E01 1. Technical Information Note: Provide by manufacturer. 1.1. Manufacturer and Factory Information Applicant: SHANGHAI MOUNTAIN VIEW SILICON CO,. LTD Applicant Address: Suite 4C, Building 3, 1238 Zhangjiang Road, Pudong New District, Shanghai, China Manufacturer: SHANGHAI MOUNTAIN VIEW SILICON CO,. LTD Manufacturer Address: Suite 4C, Building 3, 1238 Zhangjiang Road, Pudong New District, Shanghai, China 1.2. Equipment Under Test (EUT) Description Wireless Type N/A Frequency N/A MORLAB SHENZHEN MORLAB COMMUNICATIONS TECHNOLOGY Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 4 of 14 REPORT No.：SZ19080340E01 2. Test Results 2.1. Applied Reference Documents Leading reference documents for testing: No. Identity Document Title 1 ANSI/IEEE Std 149-2008 IEEE Standard Test Procedures for Antennas 2.2. Test Conditions Test Environment Conditions： Relative Humidity: 25 ... 75 % Temperature: +10 °C to +30 °C 2.3. Test Results lists 2.3.1. Gain Frequency Gain(dBi) 2400MHz 2.81 2410MHz 2.74 2420MHz 3.38 2430MHz 2.73 2440MHz 1.01 2450MHz 1.26 2460MHz 1.50 2470MHz 1.49 2480MHz 1.42 2490MHz 0.36 2500MHz 0.33 MORLAB SHENZHEN MORLAB COMMUNICATIONS TECHNOLOGY Co., Ltd. FL1-3, Building A, FeiYang Science Park, No.8 LongChang Road, Block67, BaoAn District, ShenZhen , GuangDong Province, P. R. China Tel: 86-755-36698555 Fax: 86-755-36698525 Http://www.morlab.cn E-mail: [email protected] Page 5 of 14 REPORT No.：SZ19080340E01 2.3.2. Return Loss/VSWR/Input Impedance Frequency Return Loss (dB) VSWR Input Impedance(Ω) 240…

Text truncated - open the document above for the full version.

Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 1 of 63 TEST REPORT Reference No. .................... : WTX22X08163840W001 FCC ID ................................ : A4E-REMO4A Applicant ........................... : eMoMo Technology Co., Ltd Address.............................. : 4th, Floor, Yong He Building ,Tai Wan Industrial Park ,Shi Yan Town ,Bao’an District ,Shen Zhen, 518108, Guangdong, China Manufacturer ..................... : The same as Applicant Address.............................. : The same as Applicant Product Name ................... : Remo4 Audio System Model No... ......................... : Remo4 Standards .......................... : FCC Part 15.247 Date of Receipt sample .... : 2022-08-11 Date of Test........................ : 2022-08-12 to 2022-08-25 Date of Issue ..................... : 2022-08-25 Test Report Form No. ....... : WTX_Part 15_247W Test Result ......................... : Pass Remarks: The results shown in this test report refer only to the sample(s) tested, this test report cannot be reproduced, except in full, without prior written permission of the company. The report would be invalid without specific stamp of test institute and the signatures of approver. Prepared By: Waltek Testing Group (Shenzhen) Co., Ltd. Address: 1/F., Room 101, Building 1, Hongwei Industrial Park, Liuxian 2nd Road, Block 70 Bao'an District, Shenzhen, Guangdong, China Tel.: +86-755-33663308 Fax.: +86-755-33663309 Email: [email protected] Tested by: Approved by: Mike Shi Silin Chen Reference No.: WTX22X08163840W001 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Page 2 of 63 TABLE OF CONTENTS 1. GENERAL INFORMATION ...................................................................................................................................5 1.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ...............................................................................5 1.2 TEST STANDARDS ...................................................................................................................................................6 1.3 TEST METHODOLOGY .............................................................................................................................................6 1.4 TEST FACILITY .......................................................................................................................................................6 1.5 EUT SETUP AND TEST MODE .................................................................................................................................7 1.6 MEASUREMENT UNCERTAINTY ..............................................................................................................................8 1.7 TEST EQUIPMENT LIST AND DETAILS .....................................................................................................................9 2. SUMMARY OF TEST RESULTS ......................................................................................................................... 11 3. ANTENNA REQUIREMENT ................................................................................................................................ 12 3.1 STANDARD APPLICABLE ....................................................................................................................................... 12 3.2 EVALUATION INFORMATION................................................................................................................................. 12 4. FREQUENCY HOPPING SYSTEM REQUIREMENTS.................................................................................... 13 4.1 STANDARD APPLICABLE ....................................................................................................................................... 13 4.2 FREQUENCY HOPPING SYSTEM............................................................................................................................. 13 4.3 EUT PSEUDORANDOM FREQUENCY HOPPING SEQUENCE .................................................................................... 14 5. QUANTITY OF HOPPING CHANNELS AND CHANNEL SEPARATION ................................................... 15 5.1 STANDARD APPLICABLE ....................................................................................................................................... 15 5.2 TEST SETUP BLOCK DIAGRAM ............................................................................................................................. 15 5.3 TEST PROCEDURE ................................................................................................................................................. 15 5.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 16 6. DWELL TIME OF HOPPING CHANNEL .......................................................................................................... 17 6.1 STANDARD APPLICABLE ....................................................................................................................................... 17 6.2 TEST SETUP BLOCK DIAGRAM ............................................................................................................................. 17 6.3 TEST PROCEDURE ................................................................................................................................................. 17 6.4 SUMMARY OF TEST RESULTS/PLOTS .................................................................................................................... 18 7. 20DB BANDWIDTH ............................................................................................................................................... 19 7.1 STANDARD APPLICABLE .......................................................................................................................…

Text truncated - open the document above for the full version.

Reference No.: WTX22X08163840W Page 8 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn EXHIBIT 4 - TEST SETUP PHOTOGRAPHS Conducted Emission Test Setup Radiation Emission Test Setup (Below 30MHz) Reference No.: WTX22X08163840W Page 9 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (30MHz to 1GHz) Radiation Emission Test Setup (1GHz to 18GHz) Reference No.: WTX22X08163840W Page 10 of 10 Waltek Testing Group (Shenzhen) Co., Ltd. Http://www.waltek.com.cn Radiation Emission Test Setup (Above 18GHz) Radio Test Setup View ***** END OF REPORT *****