2BABV-S25Karaoke Machine

Product User Manual Packing List Packing List Product Parameters Product Appearance Description Product Appearance Description Host * 1 Audio cable * 1 Instructions * 1 Charging cable * 1 Certificate of conformity * 1 Audio parameters Audio parameters Battery capacity; 3600 mAh Charging method: Type-c Charging time: approximately 2 hours Battery life: approximately 24 hours Playback duration: 3.5-4 hours Horn size; 66mm Product Name: Karaoke sound system Product model: S25 Sound channel system; Monophonic channel Bluetooth module: 5.3+EDR Transmission distance: 10 m Rated input: 5V-1A (fast charging not supported) Rated power: 7.4W Product weight: 0.98kg Product size: 115 * 105 * 215mm Microphone parameters Frequency range: 2.4GHz Channel System: Mono Sampling rate: 48KHZ Rated input: 5V -1A Audio: 1. Type-c charging port; 2. TF card; 3. AUX input; 4. Short press the volume up, long press one song; 5. Short press to decrease the volume, long press the previous song; Battery capacity: 3.7V/800mAh Charging method: Type-c Charging time: approximately 2 hours Battery life: approximately 12 hours 6. Short press the light mode to switch, long press to enter TWS, and the green light will be on for a long time; 7. Long press to turn on/off, short press to play, pause, and the red light flashes when charging, while the red light remains on when fully charged; Microphone: 8. Long press to turn on/off, short press to mute, double-click to change the color of the colored light; When charging, the red light flashes and remains on when fully charged; 9. Short press Reverb Plus 10. Short press to reduce reverberation; 11. Long press to turn reverb on/off, short press to change soundv User Manual Voice wake-up Xiao An Tong Xue After sales service description After sales service description Common problem handling Common problem handlingWarranty Card Dear user, thank you very much for using our product. In order to effectively protect your rights and interests, it is clear that the distribution agents and companies should bear the responsibility and obligation of product repair, replacement, and return (hereinafter referred to as the "three guarantees"). Please read the following information 1. The "Product Warranty Card" is a necessary voucher for our company to provide free after-sales service for the product during the warranty period 2. According to the principle of "whoever sells is responsible for the three guarantees", if there are quality issues with the product, please contact the dealer with the "Product Warranty Card". The dealer will provide service to the customer, and our company will provide service support to the dealer; 3. Our company promises that customers who have quality issues within seven days from the date of sale (the date shall be based on the valid invoice date, the same below) can return, replace, or repair them now; If there are quality issues within 8-15 days from the date of sale, customers can choose to replace and repair them; If there are quality issues within one year from the date of sale, customers can repair them free of charge; If there are quality issues with the product beyond the warranty period, customers can enjoy lifelong repair (each after-sales service point only charges for component materials): Please fill out the "Product Warranty Card" carefully with the dealer when purchasing 4. The following situations do not qualify for the three guarantees service: (1) Exceeding the three guarantees period (2) Damage caused by failure to use, repair, or store according to the product manual (3) Damage caused by disassembly by repairers who are not responsible for the three guarantees (4) The content on the Product Warranty Card does not match or is altered with the physical product identification (5) Damage caused by force majeure 1.If the indicator light does not light up after turning on, please check if the audio power is sufficient, or connect the audio to a 5V/IA power supply for charging. The charging time is approximately 3-4 hours 2. There is no sound from the microphone. It may be due to the power not being turned on, the mode being incorrect, or the volume not being adjusted. Please adjust the microphone volume properly 3. If there is no reverberation in the audio system, it may be that the reverberation switch has been turned off. Please turn on the reverberation switch. 4. If there is noise in the microphone, it may be due to environmental noise, signal interference, or the microphone being too close to the speaker. Please readjust the direction of the microphone If Bluetooth playback is interrupted, it may be because the Bluetooth distance is too far, or there is an obstacle between the phone and the amplifier, which affects signal transmission. Please approach the connected phone and avoid obstacles 6. If Bluetooth cannot be connected, it may be due to being too far away, having obstacles, or being connected by other phones. Please approach the phone to avoid obstacles and disconnect the phone 7. If it is impossible to charge, check whether the charger is normal and whether the red indicator light of the charging port lights up when the audio is charging This product is not sold with a power adapter. If a power adapter is used for power supply, a power adapter that has obtained CCC certification and meets the standard requirements should be purchased. The battery should not be exposed to environments such as sunlight, fire, or similar overheating. If the battery is not replaced properly, there is a risk of explosion, and it can only be replaced with the same type of battery Tips Product model: Purchase date: Agent: Invoice date: Phone: Customer Name: Postal Code: QUALIFIED CERTIFICATE MODEL: CHECKER: DATE: PASS QC 01 FCC Warnning: 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 againstharmful interference in a…

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Shenzhen HTT Technology Co., Ltd. Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 4 Product Name: Karaoke Machine Model No.: S25 EUT Constructional Details External Photo Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 4 Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 4 Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 4 of 4 ------End------

Label and Location Size: L: 2.0cm*W: 1.0cm Label and Location FCC ID : 2BABV-S25

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 3 Product Name: Karaoke Machine Model No.: S25 EUT Constructional Details Internal Photo Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 3 Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 3 of 3 ------End------

RF Exposure evaluation FCC ID: 2BABV-S25 1.1. Applicable Standard According to §1.1307(b)(1), systems operating under the provisions of this section shall be operated in a manner that ensures that the public is not exposed to radio frequency energy level in excess of the Commission’s guidelines. According to §1.1310 and §2.1093 RF exposure requirement KDB447498 v06: Mobile and Portable Devices RF Exposure Procedures and Equipment Authorization Policies 1.2. Requirement 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.23 “ [(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 • 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. 1.3. Manufacturing tolerance GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 1.0 2.0 3.0 Tolerance ±(dB) 1.0 1.0 1.0 π/4DQPSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) 1.0 2.0 3.0 Tolerance ±(dB) 1.0 1.0 1.0 BLE GFSK (Peak) Channel Channel 0 Channel 39 Channel 78 Target (dBm) -3.0 -3.0 -4.0 Tolerance ±(dB) 1.0 1.0 1.0 Page 2 of 2 2. E v a l u a t i o n R e s u l t Evaluation Results Band/Mode f (GHz) Antenna Distance (mm) RF output power (including tune-up tolerance) SAR Test Exclusion Threshold SAR Test Exclusion dBm mW BT 2.450 5 4.0 2.5119 0.7863<3.0 Yes 3. C o n c l u s i o n The measurement results comply with the FCC Limit per 47 CFR 2.1093 for the uncontrolled RF Exposure and SAR Exclusion Threshold per KDB 447498 v06 .....................End of Report.........................

Summary InvertedFAntennaSpecification ITEMANTSPEC ModelName2.4GANT Center Frequency HorizontalVertical 2400MHz2400MHz2500MHz2400MHz2400MHz2500MHz -1.85-1.05-0.67-4.21-2.02-1.37 MAX.Gain-0.67dBi PolarizationHorizontalandVertical AzimuthBeam Pattern Omni-directional Impedance50Ohm AntennaLength30.49mm ManufactureSHENZHENRENYUANTECHNOLOGYCO.,LTD AntennaPhoto&Length(mm) Horizontal:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-40Scale:5/div Frequency (MHz) Gain(dBi) MaxMinAvg 2400-1.85658-30.0801-7.18716 2450-1.04891-36.5604-7.48023 2500-0.67525-22.0315-6.59127 Vertical:2400MHz2450MHz2500MHz Power(dBm) Max:0Min:-30Scale:5/div Frequency (MHz) Gain(dBi) MaxMinAvg 2400-4.2169-22.1424-12.4294 2450-2.0195-24.5837-10.4702 2500-1.3714-29.5214-9.20432 ANTTestLabs ： AttestationofGlobalComplianceCo.,Ltd.

Shenzhen HTT Technology Co., Ltd. Report No.: HTT202307247F02 This 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 compiler and approver. Page 1 of 31 TEST Report Applicant: Shenzhen Saibolin Electronic Technology Co., Ltd Address of Applicant: Floor 4, No. 5, Caiyun 1st Road, Longgang District, Shenzhen Manufacturer : Shenzhen Saibolin Electronic Technology Co., Ltd Address of Manufacturer : Floor 4, No. 5, Caiyun 1st Road, Longgang District, Shenzhen Equipment Under Test (EUT) Product Name: Karaoke Machine Model No.: S25 Series model: S28, S29, S30 Trade Mark: N/A FCC ID: 2BABV-S25 Applicable standards: FCC CFR Title 47 Part 15 Subpart C Section 15.247 Date of sample receipt: Jul.14,2023 Date of Test: Jul.14,2023~Jul.24,2023 Date of report issued: Jul.24,2023 Test Result : PASS * * In the configuration tested, the EUT complied with the standards specified above. Report No.: HTT202307247F02 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 2 of 31 1. Version Version No. Date Description 00 Jul.24,2023 Original Tested/ Prepared By Date: Jul.24,2023 Project Engineer Check By: Date: Jul.24,2023 Reviewer Approved By : Date: Jul.24,2023 Authorized Signature Report No.: HTT202307247F02 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park, Hangcheng Road,Nanchang Community, Xixiang Street, Bao'an District, Shenzhen, Guangdong, China Page 3 of 31 2. Contents Page 1. VERSION ........................................................................................................................................................ 2 2. CONTENTS .................................................................................................................................................... 3 3. TEST SUMMARY ........................................................................................................................................... 4 4. GENERAL INFORMATION ............................................................................................................................ 5 4.1. GENERAL DESCRIPTION OF EUT ................................................................................................................ 5 4.2. TEST MODE ............................................................................................................................................... 7 4.3. DESCRIPTION OF SUPPORT UNITS .............................................................................................................. 7 4.4. DEVIATION FROM STANDARDS .................................................................................................................... 7 4.5. ABNORMALITIES FROM STANDARD CONDITIONS ........................................................................................... 7 4.6. TEST FACILITY ........................................................................................................................................... 7 4.7. TEST LOCATION ......................................................................................................................................... 7 4.8. ADDITIONAL INSTRUCTIONS ........................................................................................................................ 7 5. TEST INSTRUMENTS LIST ........................................................................................................................... 8 6. TEST RESULTS AND MEASUREMENT DATA ........................................................................................... 9 6.1. CONDUCTED EMISSIONS ............................................................................................................................ 9 6.2. CONDUCTED OUTPUT POWER .................................................................................................................. 12 6.3. CHANNEL BANDWIDTH .............................................................................................................................. 13 6.4. POWER SPECTRAL DENSITY ..................................................................................................................... 15 6.5. BAND EDGES ........................................................................................................................................... 17 6.5.1 Conducted Emission Method .......................................................................................................... 17 6.5.2 Radiated Emission Method ............................................................................................................. 18 6.6. SPURIOUS EMISSION ................................................................................................................................ 20 6.6.1 Conducted Emission Method .......................................................................................................... 20 6.6.2 Radiated Emission Method ............................................................................................................. 22 6.7. ANTENNA REQUIREMENT .......................................................................................................................... 30 7. TEST SETUP PHOTO .................................................................................................................................. 31 8. EUT CONSTRUCTIONAL DETAILS ........................................................................................................... 31 Report No.: HTT202307247F02 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23…

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Shenzhen HTT Technology Co., Ltd. Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 1 of 2 Product Name: Karaoke Machine Model No.: S25 Test Setup Photo Radiated Emission Report No.: HTT202307247 Shenzhen HTT Technology Co.,Ltd. Tel: 0755-23595200 Fax: 0755-23595201 1F, Building B, Huafeng International Robotics Industrial Park,Hangcheng Road, Nanchang Community, Xixiang Street, Bao'an District, Guangdong Province, Shenzhen, China Page 2 of 2 Conducted Emission ------End------