2A9MY-HT-S055Bluetooth Speaker

Bluetooth Speaker Instruction Manual ① ② ③ ④ ⑤ 1x IPX7 Bluetooth Speaker with Colorful LED Light 1x USB to Type C Charging Cable 1x Instruction Manual 1.Vol+/Next Track 2.Power ON/OFF 3.Vol-/Previous Track 4.Bluetooth LED Indicator 5.Type C input • • • • • • • • • What’s included: : Functions: Size:Ф90*180mm Material:ABS+Woven cloth Waterproof level:IPX7 Playing time:up to 3 hours at max volume Charging time:up to 2 hours Pairing Name:HT-S055 The interface type:USB-C Battery capacity:2000 mAh Type C input: 5V1A • ** • • Frequency:80Hz-20KHz（Speaker） Speaker driver: 4Ω,5Wx2 LED light power:0.2Wx6 Lanyard length: 20cm (Be sure to fully charge the speaker before using for the first time) Charging the Speaker: Connect the provided charging cable to a power source and to the Type-C port (5) on the speaker. The RED LED light(4) will turn on when the speaker is being charged. When the speaker is fully charged the RED LED light (4) will change to GREEN Bluetooth® Setup: Press and hold Speaker ON/OFF Button(2) to turn ON the speaker, Bluetooth LED indicator(4) will flash BLUE. Turn on the Bluetooth function on mobile device, Select “HT-S055”pairing name. LED will turn solid BLUE if successfully paired. Using the Speaker: When receiving a phone call, press ON/OFF button to answer and again to hang up. “Vol+/Next track” (1):Long press - next track.Short press - increase volume. “Vol-/Previous track” (3): Long press - previous track Short press - reduce volume LED rhythm light: LED light rhythmically flashes according to volume and rhythm.After the speaker is turn on,press ON/OFF Button(2) twice to change the RGB,there are 3modes for adjustment. 1. 2. 3. Instructions: MADE IN CHINA SAFETY PRECAUTIONS: WARNING-When using this product, basic precautions should always be followed: 1. Read all the instructions before use. 2. Never store or use this product in temperatures below 32°F (0°C) or above 115°F (45°C). 3. To reduce the risk of injury, close supervision is necessary when the product is used near children. 4. Do not use the device in excess of its output rating. Overload outputs above rating may result in a risk of fire or injury. 5. Do not use the device if damaged or modified. 6. Damaged or motified batteries may exhibit unpredictable behavior resulting in fire,explosion or risk of injury. 7. Do not disassemble the device. For repairs,seek a qualified service professional. Incorrect reassembly may result in a risk of fire or injury. 8. Do not expose the device to fire or temperatures above 104°F may cause explosion. 9. Ensure that qualified service professionals use only identical replacement parts to ensure product safety. FCC Caution： 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. Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. Note: 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. The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction. When the speaker is playing the music,short press the ON/OFF Button(2) to pause the music playing. When the bluetooth is not paired, the device will automatically shut down after standby for more than 5 minutes, and the LED indicator light (4)will be turned off. Speaker will automatically pair if the mobile device has been paired before. Press and hold Speaker ON/OFF Button(2) to turn off the device.

Hitech Industrial Co., Ltd 2023-08-24 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(i) request for FCC ID: 2A9MY-HT-S055 Hitech Industrial 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, Applicant signature: Applicant printed name: Jennifer Liu Hitech Industrial Co., Ltd 2023-08-24 Eurofins Electrical and Electronic Testing NA, Inc. 914 West Patapsco Avenue Baltimore, MD 21230 RE: Attestation Statements Part 2.911(d)(5)(ii) request for (FCC ID: 2A9MY-HT-S055) Hitech Industrial Co., Ltd certifies that, as of the date of the filing of the application, the applicant is not identified on the Covered List as an entity producing “covered” equipment. Sincerely, Applicant signature: Applicant printed name: Jennifer Liu

Hitech Industrial Co., Ltd 2023.08.24 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: LETTER OF AGENT AUTHORIZATION To Whom It May Concern: We, the undersigned, hereby authorize Shenzhen BCTC Testing Co., Ltd to act on our behalf in all matters relating to application for equipment authorization, including the signing of all documents relating to these matters. We also hereby certify that no party to the application authorized hereunder is subject to the denial of benefits, including FCC benefits, pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C.853(a). This agreement expires one year from the current date. Sincerely, Client’s signature: Client’s name / title : Jennifer Liu / Manager Contact information / address: 6/F, 15th Building, 4th Industrial Zone, Yulv Community, Gongming, Guangming New District, Shenzhen, China

Hitech Industrial Co., Ltd 2023.08.24 Eurofins Electrical and Electronic Testing NA, Inc. 914 W. Patapsco Avenue Baltimore, MD 21230 USA RE: CONFIDENTIALITY REQUEST FOR EUT NAME: Bluetooth Speaker MODEL: HT-S055, 710551 FCC ID: 2A9MY-HT-S055 To Whom It May Concern: This letter serves as an official request for confidentiality under sections 0.457 and 0.459 of CFR 47. We have requested that the - Block Diagram - Schematics - Operational Description required to be submitted with this application be permanently withheld from public review. 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. Please contact me if there is any information you may need. Sincerely, Client’s signature: Client’s name / title : Jennifer Liu / Manager Contact information / address: 6/F, 15th Building, 4th Industrial Zone, Yulv Community, Gongming, Guangming New District, Shenzhen, China

Hitech Industrial Co., Ltd Model Difference 2023/08/24 EUT NAME: Bluetooth Speaker MODEL: HT-S055, 710551 All the model are the same circuit and RF module, except model names. Regards Sincerely Client’s signature: Client’s name / title : Jennifer Liu / Manager Contact information / address: 6/F, 15th Building, 4th Industrial Zone, Yulv Community, Gongming, Guangming New District, Shenzhen, China

External Photos

Size:10*5m FCC ID: 2A9MY-HT-S055 Label Location

Internal Photos Antenna

FCC ID: 2A9MY-HT-S055 Portable device According to §15.247(e)(i) and §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 KDB447498 D01 General RF Exposure Guidance V06 The 1-g SAR and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)]·[√f(GHZ)] ≤ 3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR, where: • 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 When the minimum test separation distance is < 5 mm, a distance of 5 mm is applied to determine SAR test exclusion. Modulation Channel Freq. (GHz) Conduct ed power (dBm) Conducte d power (mW) Tune-up power (dBm) Max tune-up power (dBm) Max tune-up power (mW) Distance (mm) Result calculatio n SAR Exclusion threshold SAR test exclusion GFSK2.480 -7.43 0.18-7±1-6.000.25<50.079113.00YES π/ 4 DQPSK 2.480 -6.61 0.22-6±1-5.000.32<50.099603.00YES 8DPSK2.480-6.080.25-6±1-5.000.32<50.099603.00YES Conclusion: For the max result : 0.09960＜3, the SAR testing is not required.

Inverted F Antenna Specification ITEM ANT SPEC Model Name 2.4G ANT Center Frequency Horizontal Vertical 2400MHz 2400MHz 2500MHz 2400MHz 2400MHz 2500MHz -1.26-0.76-0.58-5.25-2.46-1.86 MAX. Gain -0.58dBi Polarization Horizontal and Vertical Azimuth Beam Pattern Omni-directional Impedance 50 Ohm Antenna Length 38.20mm Manufacture ZHUHAI JIELI TECHNOLOGY CO.,LTD Address No. 333 Kexing Road, Xiangzhou District, Zhuhai City Antenna Photo & Length (mm) Horizontal: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -40 Scale: 5/div Frequency (MHz) Gain(dB) Max Min Avg 2400 -1.26174 -30.0801 -7.18716 2450 -0.765802 -36.5604 -7.48023 2500 -0.585582 -22.0315 -6.59127 Vertical: 2400 MHz 2450 MHz 2500 MHz Power (dBm) Max: 0 Min: -30 Scale: 5/div Frequency (MHz) Gain(dB) Max Min Avg 2400 -5.2537 -22.1424 -12.4294 2450 -2.4652 -24.5837 -10.4702 2500 -1.86120 -29.5214 -9.20432 ANT Test Labs：Attestation of Global Compliance Co., Ltd.

No.：BCTC/RF-EMC-007 Page: 1 of 80 Edition：B.0 TEST REPORT Shenzhen BCTC Testing Co., Ltd. Report No.: BCTC2306903185E Applicant: Hitech Industrial Co., Ltd Product Name: Bluetooth Speaker Model/Type reference: HT-S055 Tested Date: 2023-06-20 to 2023-07-10 Issued Date: 2023-07-12 Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 2 of 80 Edition：B.0 FCC ID: 2A9MY-HT-S055 The test report is effective only with both signature and specialized stamp.This result(s) shown in this report refer only to the sample(s) tested. Without written approval of Shenzhen BCTC Testing Co., Ltd, this report can’t be reproduced except in full.The tested sample(s) and the sample information are provided by the client. Product Name: Bluetooth Speaker Trademark: N/A Model/Type Reference: HT-S055 710551 Prepared For: Hitech Industrial Co., Ltd Address: 6/F, 15th Building, 4th Industrial Zone, Yulv Community, Gongming, Guangming New District, Shenzhen, China Manufacturer: Hitech Industrial Co., Ltd Address: 6/F, 15th Building, 4th Industrial Zone, Yulv Community, Gongming, Guangming New District, Shenzhen, China Prepared By: Shenzhen BCTC Testing Co., Ltd. Address: 1-2/F., Building B, Pengzhou Industrial Park, No.158, Fuyuan 1st Road, Zhancheng, Fuhai Subdistrict, Bao'an District, Shenzhen, Guangdong, China Sample Received Date: 2023-06-19 Sample tested Date: 2023-06-20 to 2023-07-10 Issue Date: 2023-07-12 Report No.: BCTC2306903185E Test Standards: FCC Part15.247 ANSI C63.10-2013 Test Results: PASS Remark: This is Bluetooth Classic radio test report. Tested by: Approved by: Eric Yang/Project Handler Zero Zhou/Reviewer Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 3 of 80 Edition：B.0 Table Of Content Test Report Declaration Page 1. Version .................................................................................................................. 5 2. Test Summary ....................................................................................................... 6 3. Measurement Uncertainty ..................................................................................... 7 4. Product Information And Test Setup ..................................................................... 8 4.1 Product Information ............................................................................................... 8 4.2 Test Setup Configuration ...................................................................................... 9 4.3 Support Equipment ............................................................................................... 9 4.4 Channel List ........................................................................................................ 10 4.5 Test Mode ........................................................................................................... 10 4.6 Table Of Parameters Of Text Software Setting ................................................... 10 5. Test Facility And Test Instrument Used ............................................................... 11 5.1 Test Facility ......................................................................................................... 11 5.2 Test Instrument Used .......................................................................................... 11 6. Conducted Emissions .......................................................................................... 13 6.1 Block Diagram Of Test Setup .............................................................................. 13 6.2 Limit .................................................................................................................... 13 6.3 Test procedure .................................................................................................... 13 6.4 EUT operating Conditions ................................................................................... 13 6.5 Test Result .......................................................................................................... 14 7. Radiated emissions ............................................................................................. 16 7.1 Block Diagram Of Test Setup .............................................................................. 16 7.2 Limit .................................................................................................................... 17 7.3 Test procedure .................................................................................................... 18 7.4 EUT operating Conditions ................................................................................... 19 7.5 Test Result .......................................................................................................... 20 8. Radiated Band Emission Measurement And Restricted Bands Of Operation ..... 24 8.1 Block Diagram Of Test Setup .............................................................................. 24 8.2 Limit .................................................................................................................... 24 8.3 Test procedure .................................................................................................... 25 8.4 EUT operating Conditions ................................................................................... 25 8.5 Test Result .......................................................................................................... 26 9. Spurious RF Conducted Emissions ..................................................................... 27 9.1 Block Diagram Of Test Setup .............................................................................. 27 9.2 Limit .................................................................................................................... 27 9.3 Test procedure .................................................................................................... 27 9.4 Test Result ...............................................................................…

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Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 62 of 80 Edition：B.0 Test Graphs CFS NVNT 1-DH1 2402MHz CFS NVNT 1-DH1 2441MHz Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 63 of 80 Edition：B.0 CFS NVNT 1-DH1 2480MHz CFS NVNT 2-DH1 2402MHz Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 64 of 80 Edition：B.0 CFS NVNT 2-DH1 2441MHz CFS NVNT 2-DH1 2480MHz Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 65 of 80 Edition：B.0 CFS NVNT 3-DH1 2402MHz CFS NVNT 3-DH1 2441MHz Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 66 of 80 Edition：B.0 CFS NVNT 3-DH1 2480MHz Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 67 of 80 Edition：B.0 13. Number Of Hopping Frequency 13.1 Block Diagram Of Test Setup 13.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. 13.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set the spectrum analyzer: RBW = 100kHz. VBW = 300kHz. Sweep = auto; Detector Function = Peak. Trace = Max hold. 3. Allow the trace to stabilize. It may prove necessary to break the span up to sections. in order to clearly show all of the hopping frequencies. The limit is specified in one of the subparagraphs of this Section. 4. Set the spectrum analyzer: Start Frequency = 2.4GHz, Stop Frequency = 2.4835GHz. Sweep=auto; 13.4 Test Result Condition Mode Hopping Number Limit Verdict NVNT 1-DH1 79 15 Pass NVNT 2-DH1 79 15 Pass NVNT 3-DH1 79 15 Pass Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 68 of 80 Edition：B.0 Test Graphs Hopping No. NVNT 1-DH1 2441MHz Hopping No. NVNT 2-DH1 2441MHz Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 69 of 80 Edition：B.0 Hopping No. NVNT 3-DH1 2441MHz Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 70 of 80 Edition：B.0 14. Dwell Time 14.1 Block Diagram Of Test Setup 14.2 Limit Frequency hopping systems in the 2400-2483.5 MHz band shall use at least 15 channels. The average time of occupancy on any channel shall not be greater than 0.4 seconds within a period of 0.4 seconds multiplied by the number of hopping channels employed. Frequency hopping systems may avoid or suppress transmissions on a particular hopping frequency provided that a minimum of 15 channels are used. 14.3 Test procedure 1. Remove the antenna from the EUT and then connect a low RF cable from the antenna port to the spectrum. 2. Set spectrum analyzer span = 0. Centred on a hopping channel; 3. Set RBW = 1MHz and VBW = 3MHz.Sweep = as necessary to capture the entire dwell time per hopping channel. Set the EUT for DH5, DH3 and DH1 packet transmitting. 4. Use the marker-delta function to determine the dwell time. If this value varies with different modes of operation (e.g.. data rate. modulation format. etc.). repeat this test for each variation. The limit is specified in one of the subparagraphs of this Section. Submit this plot(s). 14.4 Test Result DH5 Packet permit maximum 1600 / 79 / 6 hops per second in each channel (5 time slots RX, 1 time slot TX). DH3 Packet permit maximum 1600 / 79 / 4 hops per second in each channel (3 time slots RX, 1 time slot TX). DH1 Packet permit maximum 1600 / 79 /2 hops per second in each channel (1 time slot RX, 1 time slot TX). So, the Dwell Time can be calculated as follows: DH5:1600/79/6*0.4*79*(MkrDelta)/1000 DH3:1600/79/4*0.4*79*(MkrDelta)/1000 DH1:1600/79/2*0.4*79*(MkrDelta)/1000 Remark: Mkr Delta is once pulse time. Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 71 of 80 Edition：B.0 Modulation Channel Data Packet pulse time(ms) Dwell Time(s) Limits(s) GFSK Middle 1DH1 0.376 0.120 0.4 1DH3 1.631 0.261 0.4 1DH5 2.880 0.307 0.4 π/ 4 DQPSK Middle 2DH1 0.378 0.121 0.4 2DH3 1.630 0.261 0.4 2DH5 2.885 0.308 0.4 8DPSK Middle 3DH1 0.387 0.124 0.4 3DH3 1.636 0.262 0.4 3DH5 2.887 0.308 0.4 Test Graphs Dwell NVNT 1-DH1 2441MHz One Burst Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 72 of 80 Edition：B.0 Dwell NVNT 1-DH3 2441MHz One Burst Dwell NVNT 1-DH5 2441MHz One Burst Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 73 of 80 Edition：B.0 Dwell NVNT 2-DH1 2441MHz One Burst Dwell NVNT 2-DH3 2441MHz One Burst Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 74 of 80 Edition：B.0 Dwell NVNT 2-DH5 2441MHz One Burst Dwell NVNT 3-DH1 2441MHz One Burst Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 75 of 80 Edition：B.0 Dwell NVNT 3-DH3 2441MHz One Burst Dwell NVNT 3-DH5 2441MHz One Burst Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 76 of 80 Edition：B.0 15. Antenna Requirement 15.1 Limit 15.203 requirement: For intentional device, according to 15.203: an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device. 15.2 Test Result The EUT antenna is PCB antenna, fulfill the requirement of this section. Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 77 of 80 Edition：B.0 16. EUT Photographs EUT Photo NOTE: Appendix-Photographs Of EUT Constructional Details Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 78 of 80 Edition：B.0 17. EUT Test Setup Photographs Conducted emissions Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 79 of 80 Edition：B.0 Radiated Measurement Photos Report No.: BCTC2306903185E No.：BCTC/RF-EMC-007 Page: 80 of 80 Edition：B.0 STATEMENT 1. The equipment lists are traceable to the national reference standards. 2. The test report can not be partially copied unless prior written approval is issued from our lab. 3. The test report is invalid without the "special seal for inspection and testing". 4. The test report is invalid without the signature of the approver. 5. The test process and test result is only related to the Unit Under Test. 6. Sample information is provided by the client and the laboratory is not responsible for its authenticity. 7. The quality system of our laboratory is in accordance with ISO/IEC17025. 8. If there is any objection to this test …

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Conducted emissions Radiated Measurement Photos