2ALHZBT-1094Bluetooth headphones

Paired Powering On and Bluetooth Pairing 12:12 PM Bluetooth Bluetooth Devices ON Now discoverable Altec Lansing Comfort 2-3 Seconds Press & Hold Answering Calls Volume Up Volume Down Answer Call PRESS PRESS & HOLD Ignore Call Controlling Music PRESS Play Next Track Previous Track PRESS & HOLD Volume Up Volume Down JUST ASK For additional user materials and warranty information, please visit alteclansing.com PRESS x2 JUST ASK (Google/Siri) MZX570 QUICK START GUIDE COMFORT WIRELESS HEADPHONES Charging ~2-3 Hours (red) = charging (blue) = charging complete In the Box USB Cable Comfort Wireless Headphones A Closer Look Volume Up/ Next Track Volume Down/ Previous Track Aux Input Multi-Function Button (Power/Play/Pause/ Answer Calls/ Google, Siri Voice Assistant) Microphone LED Indicator Light LED Indicator Light Charging Port (red & blue flashing) = Pairing Mode LED Indicator Light - + - + X

May 21, 2020 Federal Communications Commission 445 12 th Street SW Washington, DC 20554 Subject: Limited Agency Agreement KO-STAR DEVELOPMENT CO., LTD. FCC ID: 2ALHZBT-1094 To Whom It May Concern: We, KO-STAR DEVELOPMENT CO., LTD. hereby authorized Intertek Testing Services to act as our Agent for the purpose of preparing application for FCC ID number (2ALHZBT-1094) under all applicable parts of the FCC rules and regulations. The effective date of this limited agency agreement is (2020-05-21). The Limited Agency Agreement expires until further notice, unless sooner terminated or extended by written notice to Intertek Testing Services and the Federal Communications Commission. This is to advise that we are in full compliance with the Anti-Drug Abuse Act. The applicant is not subject to a denial of federal benefits pursuant to Section 5301 of the Anti-Drug Act of 1988, 21 U.S.C. 862, and no party to the application is subject to a denial of federal benefits pursuant to that section. If you have any questions or comments, please do not hesitate to contact me. Sincerely, [Signature] KO-STAR DEVELOPMENT CO., LTD. Contact person: LING YAN

May 20, 2020 Federal Communication Commission Authorization and Evaluation Division FCC ID: 2ALHZBT-1094 Re: Confidentiality Request Pursuant to Sections 0.457 and 0.459 of the Commission’s Rules, the applicant hereby requests confidential treatment of information applied this application as outlined below: 1: Block Diagram 2: Schematics 3: Operational Description The above materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rules 0.457, disclosure of this Application and all accompanying documentation will not be made before the date of the Grant for this application. Sincerely, KO-STAR DEVELOPMENT CO., LTD. Contact person: LING YAN

External Photos TOP VIEW OF EUT BOTTOM VIEW OF EUT FRONT VIEW OF EUT BACK VIEW OF EUT LEFT VIEW OF EUT RIGHT VIEW OF EUT VIEW OF EUT(Port)

FCC ID Label Location 12mm*6mm FCC ID: 2ALHZBT-1094

Internal Photos OPEN VIEW OF EUT VIEW OF BATTERY INTERNAL VIEW OF EUT-1 BT Antenna INTERNAL VIEW OF EUT-2 INTERNAL VIEW OF EUT-3

RF EXPOSURE EVALUATION 1. PRODUCT INFORMATION Product Description Bluetooth headphones Model Name MZX570 FCC ID 2ALHZBT-1094 2. EVALUATION METHOD According to 447498 D01 General RF Exposure Guidance v05 The 1-g and 10-g SAR test exclusion thresholds for 100 MHz to 6 GHz at test separation distances ≤ 50 mm are determined by: [(max. power of channel, including tune-up tolerance, mW)/(min. test separation distance, mm)] ·[√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 3. CALCULATION P t =-3.123dBm=0.49mW The value of the Maximum output power P t is referred to the test report of the CFR47 §15.247. The result for RF exposure evaluation SAR=(0.49mW /5mm) .[√2.402GHz)]=0.15<3.0 for 1-g SAR and ≤ 7.5 for 10-g extremity SAR. 4. CONCLUSION The SAR evaluation is not required.

Page 1 of 59 FCC Test Report Report No.: AGC05177200504FE03 FCC ID : 2ALHZBT-1094 APPLICATION PURPOSE : Original Equipment PRODUCT DESIGNATION : Bluetooth headphones BRAND NAME : N/A MODEL NAME : MZX570, MZX570-BLK, BT-1090B, BT-1090, BT-2020, BT-1100B, BT-1100BF, BT-1100, BT-1300, BT-1300B, BT-1300BF, BT-686, BT-102, BT-685, BT-1102, BT-1103, BT-937, BT-739, BT-1108, BT-1106, BT-936, BT-1060F, BT-1060, BT-1092, BT-1094, BT-1080, BT-229, BT-1104, BT-1500, BT-1600 APPLICANT : KO-STAR DEVELOPMENT CO.,LTD DATE OF ISSUE : May 20, 2020 STANDARD(S) : FCC Part 15.247 REPORT VERSION : V1.0 Attestation of Global Compliance (Shenzhen) Co., Ltd CAUTION: This report shall not be reproduced except in full without the written permission of the test laboratory and shall not be quoted out of context. Report No.: AGC05177200504FE03 Page 2 of 59 REPORT REVISE RECORD Report Version Revise Time Issued Date Valid Version Notes V1.0 / May 20, 2020 Valid Initial Release Report No.: AGC05177200504FE03 Page 3 of 59 TABLE OF CONTENTS 1. VERIFICATION OF CONFORMITY ............................................................................................................... 5 2. GENERAL INFORMATION ............................................................................................................................ 6 2.1. PRODUCT DESCRIPTION ..................................................................................................................... 6 2.2. TABLE OF CARRIER FREQUENCYS ..................................................................................................... 6 2.3. RECEIVER INPUT BANDWIDTH ............................................................................................................ 7 2.4. EXAMPLE OF A HOPPING SEQUENCY IN DATA MODE ....................................................................... 7 2.5. EQUALLY AVERAGE USE OF FREQUENCIES AND BEHAVIOUR ........................................................ 7 2.6. RELATED SUBMITTAL(S) / GRANT (S) .................................................................................................. 8 2.7. TEST METHODOLOGY .......................................................................................................................... 8 2.8. SPECIAL ACCESSORIES ....................................................................................................................... 8 2.9. EQUIPMENT MODIFICATIONS .............................................................................................................. 8 3. MEASUREMENT UNCERTAINTY ................................................................................................................. 9 4. DESCRIPTION OF TEST MODES ............................................................................................................... 10 5. SYSTEM TEST CONFIGURATION .............................................................................................................. 11 5.1. CONFIGURATION OF EUT SYSTEM .................................................................................................... 11 5.2. EQUIPMENT USED IN TESTED SYSTEM ............................................................................................. 11 5.3. SUMMARY OF TEST RESULTS ............................................................................................................. 11 6. TEST FACILITY ........................................................................................................................................... 12 7. PEAK OUTPUT POWER ............................................................................................................................. 13 7.1. MEASUREMENT PROCEDURE ........................................................................................................... 13 7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 13 7.3. LIMITS AND MEASUREMENT RESULT ............................................................................................... 14 8. 20DB BANDWIDTH ..................................................................................................................................... 18 8.1. MEASUREMENT PROCEDURE ........................................................................................................... 18 8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 18 8.3. LIMITS AND MEASUREMENT RESULTS ............................................................................................. 18 9. CONDUCTED SPURIOUS EMISSION ........................................................................................................ 23 9.1. MEASUREMENT PROCEDURE ........................................................................................................... 23 9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION) ................................................................... 23 9.3. MEASUREMENT EQUIPMENT USED .................................................................................................. 23 9.4. LIMITS AND MEASUREMENT RESULT ............................................................................................... 23 Report No.: AGC05177200504FE03 Page 4 of 59 10. RADIATED EMISSION ............................................................................................................................... 31 10.1. MEASUREMENT PROCEDURE ......................................................................................................... 31 10.2. TEST SETUP ....................................................................................................................................... 33 10.3. LIMITS AND MEASUREMENT RESULT ............................................................................................. 34 10.4. TEST RESULT .................................................…

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

Test Setup Photos RADIATED EMISSION TEST SETUP BELOW 1GHZ RADIATED EMISSION TEST SETUP ABOVE 1GHZ CONDUCTED TEST SETUP