2AYMT-K18Microphone

Operating instruction Please read the instructions carefully before using this product Product introduction entertainment, research and development of intelligent microphone, using 30 mm karaoke moving-coil cartridge, 5 kinds of digital sound effects, DSP digital reverberation and noise reduction technology, 2600 mah large-capacity power battery, bring you pleasure experience of K song, happy unceasingly, let you fall in love with singing. Packing list One V28 host K18 K18 live is designed for mobile phone karaoke microphones record/live/outdoor microphone USser Manual A Micro USB charging cable One manual for use One blowout preventer One storage box Certificate of qualification Supported software Sing bar, national K songs, cool dog music, Baidu music, cool my K songs on the market K song software Product operation and interface description (1) Short press: four block volume cycle adjustment long press: applause (2) Short press: four block reverberation size cycle adjustment long press: group laughter Short press: cancel original sound long press: live/recording loop switch Power button, long press: on/off, short press: five scene mode switch;Singing mode /KTV mode/concert mode/host mode/electric sound mode (the blue light flashes when the bluetooth connection is successful, and the blue light is always on.Red light is always on when charging and red light is off when fully charged.) 1. DC 5V 1A charging port 2. Nondestructive recording is made on the computer or mobile phone through the recording wire. One end of the recording wire miniUSB is connected to the karaoke bar itself, and the other end is connected to the mobile phone with the karaoke bar as the microphone. 8) Monitor the headphone hole Pet-name ruby short press: on/off microphones long press: metaphone mode switch yellow male female female male baby sounds magic Device Connection Introduction How does the device bluetooth connect to the Karaoke microphone It supports smart TV, mobile phone, laptop, iPad and other devices. First of all, when the smart microphone is turned on, the blue light will always flash. Open long time after successful connection. ◆ Open the package and take out the microphone and accessories, connect one end of the audio cable to the 'DC5V' interface of KGObo, and connect the other end to the live the device bluetooth to search for "K18" connection, and the blue light will be on for a broadcast mobile phone. Then use another mobile phone to connect Kgobo to provide accompaniment music through Bluetooth, listen to the headphones and plug them into the microphone interface, as shown below: ◆ After long pressing the power button, talk to the microphone, and press the description in the "Product Operation and Interface Description" page to adjust the volume and sound to the appropriate level; ◆ Open the live broadcast software and start the live broadcast. The k-song return set is one Bring your own earphone Settings The ISO system and some Android phones come with ear-return function. Ear-return of mobile phones has disadvantages such as delayed human voice, low volume, poor sound effect, etc. Therefore, when using the k-song microphone to record k-song, please turn the "human voice" on the k-song interface to the minimum (without affecting the recording effect).Take Singing Bar as an example. Click the icon in the lower right corner of the K-song interface and turn "voice" to the minimum, as shown in the picture below: Set K - ear back two The software comes with ear return Settings Some k-song software has ear-return function, but it has disadvantages such as voice delay, low volume and poor sound effect. Therefore, please turn off the built-in ear-return function of the software when using the k-song microphone to record Songs (the recording effect will not be affected).Take the national Karaoke song as an example, it can be set in two positions: 1. Click the icon in the lower right corner of the K-song interface to turn off the ear-back option, as shown in the figure below: 2. In the software "My" Settings, find the "Listen back Settings" option and turn it off Product specification parameters Charging voltage: DC 5V 1A Product size :265*77.5*78.5mm Power supply: Rechargeable lithium battery charging time: ≈2.5 hours Battery capacity: 2600mAh (power) Main chip: dual-core digital DSP MicroUSB output sensitivity :400mv Peak power: 40W Digital equalization: EQ regulation Bluetooth version: 5.0 Directivity: Hyperheart Model:K 1 8 sound head type;Moving coil head Bluetooth range: ≤15m Frequency response: 20-20khz Track: around 2.1 channel speaker impedance: 5 Ω The above parameters are from the factory laboratory. The actual parameters may vary depending on the product or other factors.The picture is for reference only, please refer to the real object Common trouble shooting 1. Press the power button for a long time and the indicator light of the device is not on; ◆ Try to use the device after charging 2. You can't hear your own voice; ◆ Maybe set the microphone to mute and try to press the volume button to adjust the volume ◆ Check whether the listening headphones are plugged into the interface 3. Playing music without sound; ◆ Refer to the "Device Connection Introduction" page to check whether the connection is correct ◆ Check whether the volume is adjusted correctly ◆ Check whether the headset is in bad contact 4. The microphone cannot be used for recording or the recording volume is low; ◆ Refer to the "Device Connection Introduction" page to check whether the connection is correct ◆ Check whether the headset is in bad contact ◆ Check whether the karaoke software voice Settings are too small 5. Listen to the loud noise in the headphones when listening to karaoke; ◆ Check whether the software has built-in ear-return function, turn off ear-return function in the software Settings or minimize the human voice on the K-song interface (refer to the "K-song Ear-return Settings" page) 6. Make a noise when con…

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Shenzhen Jiahongjing Technology Co., Ltd. Add: 2307 Block A, Zhantao Technology Build., Crossing of Minzhi Rd and Gongye East Rd, Xinniu Comty, Minzhi str., Longhua Dist., Shengzhen, China.518110 Date: 2021/1/31 FCC ID: 2AYMT-K18 Dear Sir/Madam, We, Shenzhen Jiahongjing Technology Co., Ltd. Hereby declares the following statement for Federal Communications Commission, PCB board, circuit, structure and internal of these model(s) are the same, Only model number is different for these model: Product name: Microphone Model no.: K18, K19, K20, K21, K22, K23, K24, K25, K26, K27,K28, K29,K30,V28 Sincerely, Name/Title： zhongci Yin/Manager Company: Shenzhen Jiahongjing Technology Co., Ltd. Address: 2307 Block A, Zhantao Technology Build., Crossing of Minzhi Rd and Gongye East Rd, Xinniu Comty, Minzhi str., Longhua Dist., Shengzhen, China.518110 Phone: 0755-21053571 Fax: 0755-21054079 E-Mail: [email protected]

CONFIDENTIALITY REQUEST for Certification Service in USA Federal Communication Commission Equipment Authorization Division, Application Processing Branch 7435 Oakland Mills Road Columbia, MD 21046 Date:<2021/1/31> Pursuant to Paragraphs §0.457 and 0.459 of the Commission’s Rules (47 C.F.R.) and Section §552(b)(4) of the Freedom of Information Act, we requests confidentiality for the following products: FCC ID Model name 2AYMT-K18 K18 For the product stated above, we request that the following information be held confidential; Exhibits Long-Term Confidentiality Short-Term Confidentiality Short-Term Confidentiality Days External Photos Internal Photos Block Diagram Schematics Test Setup Photos User’s Manual Parts List Tune Up Operational Descriptions The long-term confidentiality exhibits contain our trade secrets and proprietary information that could be of benefit to our competitors. The short-term confidentiality on the basis of ensuring that business sensitive information remains confidential until the actual marketing of our new device. If you have any questions, please feel free to contact me at the address shown below. Sincerely, Name/Title： zhongci Yin/Manager Company: Shenzhen Jiahongjing Technology Co., Ltd. Address: 2307 Block A, Zhantao Technology Build., Crossing of Minzhi Rd and Gongye East Rd, Xinniu Comty, Minzhi str., Longhua Dist., Shengzhen, China.518110 Phone: 0755-21053571 Fax: 0755-21054079 E-Mail: [email protected]

Shenzhen Jiahongjing Technology Co., Ltd. 2307 Block A, Zhantao Technology Build., Crossing of Minzhi Rd and Gongye East Rd, Xinniu Comty, Minzhi str., Longhua Dist., Shengzhen, China.518110 Federal Communications Commission Authorization and Evaluation Division Equipment Authorization Branch 7435 Oakland Mills Road Columbia, MD 21046 2021/1/31 To whom it may concern: We, Shenzhen Jiahongjing Technology Co., Ltd. the undersigned, hereby authorize Eurofins Product Service GmbH to act on our behalf in all matters relating to applications for equipment authorization FCC ID: 2AYMT-K18 including the signing of all documents related to these matters. Any and all acts carried out by Eurofins Product Service GmbH on our behalf shall have the same effect as acts of our own. We also hereby certify that no party to this application is subject to a denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. 862. Sincerely, Name/Title： zhongci Yin/Manager Company: Shenzhen Jiahongjing Technology Co., Ltd. Address: 2307 Block A, Zhantao Technology Build., Crossing of Minzhi Rd and Gongye East Rd, Xinniu Comty, Minzhi str., Longhua Dist., Shengzhen, China.518110 Phone: 0755-21053571 Fax: 0755-21054079 E-Mail: [email protected]

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 EXTERIOR PHOTOGRAPHS Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.5 Fig.6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.7 Fig.8 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.9

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 1 Label and Location Size: L2.0cm*W1.5cm Label Location Microphone Model No.: K18 FCC ID: 2AYMT-K18

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 INTERIOR PHOTOGRAPHS Fig.1 Fig.2 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.3 Fig.4 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.5 Fig.6 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.7 Fig.8 BT Antenna SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.9 Fig.10 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.11 Fig.12 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Fig.13

SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 ________________________________________________________________________ ___ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 3 FCC RF Exposure Evaluation 1. Product Information FCC ID : 2AYMT-K18 Product name : Microphone Test Model : K18 Additional Model No : K19, K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K30, V28 Model Declaration : PCB board, structure and internal of these model(s) are the same, So no additional models were tested Power supply : Input: DC 5V, 1A DC 3.7V by Rechargeable Li-ion Battery, 2600mAh Operation frequency : 2402MHz-2480MHz Channel Number : 79 Channels for Bluetooth V5.0 (DSS) Channel Spacing : 1MHz for Bluetooth V5.0 (DSS) Modulation Type : GFSK, π/4-DQPSK, 8-DPSK for Bluetooth V5.0 (DSS) Bluetooth Version : V5.0 Antenna Type : PCB Antenna Antenna Gain : 3.0dBi(Max.) Hardware version : FSX-K18 PCB-20201117 Software version : CSY_80C6D716_FSX_K18_E08_20201203 Exposure category : General population/uncontrolled environment EUT Type : Production Unit Device Type : Portable Device 2. Evaluation method and Limit According to KDB447498 D01 General RF Exposure Guidance v06 Section 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 Test Exclusion Threshold condition, listed below, is satisfied. These test exclusion conditions are based on source-based time-averaged maximum conducted output power of the RF channel requiring evaluation, adjusted for tune-up tolerance, and the minimum test separation distance required for the exposure conditions.22 The minimum test separation distance is determined by the smallest distance from the antenna and radiating structures or outer surface of the device, according to the host form factor, exposure conditions and platform requirements, to any part of the body or extremity of a user or bystander (see 5) of section 4.1). To qualify for SAR test exclusion, the test separation distances applied must be fully explained and justified by the operating configurations and exposure conditions of the transmitter and applicable host platform requirements, typically in the SAR measurement or SAR analysis report, according to the required published RF exposure KDB procedures. When no other RF exposure testing or reporting is required, a statement of justification and compliance must be included in the equipment approval, in lieu of the SAR report, to qualify for the SAR test exclusion. When required, the device specific conditions described in the other published RF exposure KDB procedures must be satisfied before applying these SAR test exclusion provisions; for example, handheld PTT two-way radios, handsets, laptops & tablets etc.“ [(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: SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 ________________________________________________________________________ ___ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 3 • 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 f) in section 4.1 is applied to determine SAR test exclusion. When one of the following test exclusion conditions is satisfied for all combinations of simultaneous transmission configurations, further equipment approval is not required to incorporate transmitter modules in host devices that operate in the mixed mobile and portable host platform exposure conditions. The grantee is responsible for documenting this according to Class I permissive change requirements. Antennas that qualify for standalone SAR test exclusion must apply the estimated standalone SAR to determine simultaneous transmission test exclusion. a) The [∑ of (the highest measured or estimated SAR for each standalone antenna configuration, adjusted for maximum tune-up tolerance) / 1.6 W/kg] + [∑ of MPE ratios] is ≤ 1.0. b)The SAR to peak location separation ratios of all simultaneously transmitting antenna pairs operating in portable device exposure conditions are all ≤ 0.04, and the [∑ of MPE ratios] is ≤ 1.0. 3. Refer Evaluation Method ANSI C95.1–1999: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. FCC KDB publication 447498 D01 General RF Exposure Guidance v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies. FCC CFR 47 part1 1.1310: Radiofrequency radiation exposure limits. FCC CFR 47 part2 2.1093: Radiofrequency radiation exposure evaluation: portable devices 4. Conducted Power Results <BT> Mode Channel Frequency (MHz) Peak Conducted Output Power (dBm) GFSK 0 2402 1.458 39 2441 -0.274 78 2480 -2.229 π/4DQPSK 0 2402 3.778 39 2441 1.917 78 2480 -0.034 8DPSK 0 2402 4.268 39 2441 2.442 78 2480 0.512 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 ________________________________________________________________________ ___ This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 1 of 47 Appendix A RF Test Data for BT V5.0(BDR/EDR) (Conducted Measurement) Product Name: Microphone Trade Mark: Asperx Test Model: K18 Environmental Conditions Temperature: 24.6 C Relative Humidity: 54.1% ATM Pressure: 100.0 kPa Test Engineer: Ben Jin Supervised by: Li Huan A.1 Maxmum Conducted Peak Output Power Mode Channel. Maximum Peak Output Power [dBm] Limit [dBm] Verdict GFSK LCH 1.458 21 PASS MCH -0.274 21 PASS HCH -2.229 21 PASS π/4DQPSK LCH 3.778 21 PASS MCH 1.917 21 PASS HCH -0.034 21 PASS 8DPSK LCH 4.268 21 PASS MCH 2.442 21 PASS HCH 0.512 21 PASS SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 2 of 47 Test Graphs GFSK/LCH GFSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 3 of 47 GFSK/HCH π/4DQPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 4 of 47 π/4DQPSK/MCH π/4DQPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 5 of 47 8DPSK/LCH 8DPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 6 of 47 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 7 of 47 A.2 20dB Bandwidth Mode Channel. 20dB Bandwidth [MHz] Limit [MHz] Verdict GFSK LCH 0.9503 Not Specified PASS MCH 0.9502 Not Specified PASS HCH 0.9504 Not Specified PASS π/4DQPSK LCH 1.317 Not Specified PASS MCH 1.319 Not Specified PASS HCH 1.319 Not Specified PASS 8DPSK LCH 1.289 Not Specified PASS MCH 1.298 Not Specified PASS HCH 1.293 Not Specified PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 8 of 47 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 9 of 47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 10 of 47 π/4DQPSK/HCH 8DPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 11 of 47 8DPSK/MCH 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 12 of 47 A.4 Carrier Frequency Separation Mode Channel. Carrier Frequency Separation [MHz] Limit [MHz] Verdict GFSK LCH 0.897 0.634 PASS MCH 1.002 0.634 PASS HCH 0.978 0.634 PASS π/4DQPSK LCH 1.126 0.879 PASS MCH 1.192 0.879 PASS HCH 1.166 0.879 PASS 8DPSK LCH 1.044 0.865 PASS MCH 1.174 0.865 PASS HCH 1.078 0.865 PASS Test Graphs GFSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 13 of 47 GFSK/MCH GFSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 14 of 47 π/4DQPSK/LCH π/4DQPSK/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 15 of 47 π/4DQPSK/HCH 8DPSK/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 16 of 47 8DPSK/MCH 8DPSK/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 17 of 47 A.5 Hopping Channel Number Mode Channel. Number of Hopping Channel [N] Limit [N] Verdict GFSK Hop 79 >=15 PASS π/4DQPSK Hop 79 >=15 PASS 8DPSK Hop 79 >=15 PASS Test Graphs GFSK/Hop π/4DQPSK/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 18 of 47 8DPSK/Hop SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 19 of 47 A.6 Dwell Time Mode Packet Channel Burst Width [ms/hop/ch] Total Hops[hop*ch] Dwell Time[s] Limit [s] Verdict GFSK DH5 LCH 2.9 106.7 0.309 0.4 PASS DH5 MCH 2.9 106.7 0.309 0.4 PASS DH5 HCH 2.9 106.7 0.309 0.4 PASS π/4DQPSK 2DH5 LCH 2.9 106.7 0.309 0.4 PASS 2DH5 MCH 2.9 106.7 0.309 0.4 PASS 2DH5 HCH 2.9 106.7 0.309 0.4 PASS 8DPSK 3DH5 LCH 2.9 106.7 0.309 0.4 PASS 3DH5 MCH 2.9 106.7 0.309 0.4 PASS 3DH5 HCH 2.9 106.7 0.309 0.4 PASS Test Graphs GFSK_DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 20 of 47 GFSK_DH5/MCH GFSK_DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 21 of 47 π/4DQPSK _2DH5/LCH π/4DQPSK _2DH5/MCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 22 of 47 π/4DQPSK _2DH5/HCH 8DPSK _3DH5/LCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 23 of 47 8DPSK _3DH5/MCH 8DPSK _3DH5/HCH SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 24 of 47 A.7 RF Conducted Spurious Emissions Mode Channel Pref [dBm] Max. Level [dBm] Limit [dBm] Verdict GFSK LCH 1.134 -36.380 -18.866 PASS MCH -0.621 -38.504 -20.621 PASS HCH -2.535 -35.528 -22.535 PASS π/4DQPSK LCH 0.959 -37.596 -19.041 PASS MCH -0.575 -36.732 -20.575 PASS HCH -2.537 -37.860 -22.537 PASS 8DPSK LCH 0.95 -37.567 -19.050 PASS MCH -0.729 -37.891 -20.729 PASS HCH -2.456 -37.770 -22.456 PASS GFSK_LCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 25 of 47 Puw GFSK_MCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 26 of 47 Puw GFSK_HCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 27 of 47 Puw π/4DQPSK_LCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 28 of 47 Puw π/4DQPSK_MCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 29 of 47 Puw π/4DQPSK_HCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 30 of 47 Puw 8DPSK_LCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 31 of 47 Puw 8DPSK_MCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 32 of 47 Puw 8DPSK_HCH_Graphs Pref SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 33 of 47 Puw SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Page 34 of 47 A.8 Band-edge for RF Conducted Emissions Mode Channel Carrier Frequency [MHz] Carrier Power [dBm] Frequency Hopping Max Spurious Level [dBm] Limit [dBm] Verdict GFSK LCH 2402 1.139 Off -47.330 -18.86 PASS 0.783 On -47.988 -19.22 PASS HCH 2480 -2.540 Off -49.056 -22.54 PASS -1.392 On -48.407 -21.39 PAS…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Report No.: LCS201214270AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 1 of 35 FCC TEST REPORT FOR Shenzhen Jiahongjing Technology Co., Ltd. Microphone Test Model: K18 Additional Model No.: Please Refer To Page 6 Prepared for : Shenzhen Jiahongjing Technology Co., Ltd. Address : 2307 Block A, Zhantao Technology Build., Crossing of Minzhi Rd and Gongye East Rd, Xinniu Comty, Minzhi str., Longhua Dist., Shengzhen, China.518110 Prepared by : Shenzhen LCS Compliance Testing Laboratory Ltd. Address : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Tel : (+86)755-82591330 Fax : (+86)755-82591332 Web : www.LCS-cert.com Mail : [email protected] Date of receipt of test sample : January 05, 2021 Number of tested samples : 2 Sample No. : 201214270A-1, 201214270A-2 Serial number : Prototype Date of Test : January 05, 2021 ~ January 20, 2021 Date of Report : January 22, 2021 SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Report No.: LCS201214270AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 2 of 35 FCC TEST REPORT FCC CFR 47 PART 15 C(15.247) Report Reference No. ................. : LCS201214270AEA Date of Issue ................................... : January 22, 2021 Testing Laboratory Name ............ : Shenzhen LCS Compliance Testing Laboratory Ltd. Address ........................................... : 101, 201 Bldg A & 301 Bldg C, Juji Industrial Park Yabianxueziwei, Shajing Street, Baoan District, Shenzhen, 518000, China Testing Location/ Procedure ........... : Full application of Harmonised standards ■ Partial application of Harmonised standards □ Other standard testing method □ Applicant’s Name .......................... : Shenzhen Jiahongjing Technology Co., Ltd. Address ........................................... : 2307 Block A, Zhantao Technology Build., Crossing of Minzhi Rd and Gongye East Rd, Xinniu Comty, Minzhi str., Longhua Dist., Shengzhen, China.518110 Test Specification Standard .......................................... : FCC CFR 47 PART 15 C(15.247) Test Report Form No. ..................... : LCSEMC-1.0 TRF Originator ................................ : Shenzhen LCS Compliance Testing Laboratory Ltd. Master TRF ..................................... : Dated 2011-03 Shenzhen LCS Compliance Testing Laboratory Ltd. All rights reserved. This publication may be reproduced in whole or in part for non-commercial purposes as long as the Shenzhen LCS Compliance Testing Laboratory Ltd. is acknowledged as copyright owner and source of the material. Shenzhen LCS Compliance Testing Laboratory 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. .................. : Microphone Trade Mark ...................................... : Asperx Test Model ...................................... : K18 Ratings ............................................ : Input: DC 5V, 1A DC 3.7V by Rechargeable Li-ion Battery, 2600mAh Result ........................................... : Positive Compiled by: Supervised by: Approved by: Jayden Zhuo/ File administrators Jin Wang/ Technique principal Gavin Liang/ Manager SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Report No.: LCS201214270AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 3 of 35 FCC -- TEST REPORT Test Result Positive 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. Test Report No. : LCS201214270AEA January 22, 2021 Date of issue Test Model........................... : K18 EUT......................................... : Microphone Applicant............................... : Shenzhen Jiahongjing Technology Co., Ltd. Address.................................. : 2307 Block A, Zhantao Technology Build., Crossing of Minzhi Rd and Gongye East Rd, Xinniu Comty, Minzhi str., Longhua Dist., Shengzhen, China.518110 Telephone............................... : / Fax.......................................... : / Manufacturer........................ : Shenzhen fengshuoxin Electronic Co., Ltd. Address................................... : 201-1, Second Floor (East), No. 22-2, Fengtang Avenue, Xintian Community, Fuhai Street, Baoan District, Shenzhen, China. Telephone............................... : / Fax.......................................... : / Factory................................... : / Address................................... : / Telephone............................... : / Fax.......................................... : / SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Report No.: LCS201214270AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 4 of 35 Revision History Revision Issue Date Revisions Revised By 000 January 22, 2021 Initial Issue Gavin Liang SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 Report No.: LCS201214270AEA This report shall not be reproduced except in full, without the written approval of Shenzhen LCS Compliance Testing Laboratory Ltd. Page 5 of 35 TABLE OF CONTENTS Description Page 1.GENERAL INFORMATION ....................................................................................................... 6 1.1 Description of Device (EUT) ............................................................................................................ 6 1.2 Support equipment List .........................…

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SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 _______________________________________________________________________________________________ TEST SETUP PHOTOGRAPHS Photo of Radiated Emissions Measurement Below 1 GHz Above 1 GHz SHENZHEN LCS COMPLIANCE TESTING LABORATORY LTD. FCC ID: 2AYMT-K18 _______________________________________________________________________________________________ Power Line Conducted Emission