Main specifications: Bluetooth version: V5.0+BR+EDR Effective distance: 1020 meters Battery capacity: 180mah Charging time: =1 hour Extreme time: =160 hours Continuous working time: =8 hour How to pair with a mobile phone 1. Manual pairing (first time) Step 1: In the shutdown state, press and hold the dial button for 3 seconds, and the LED indicator will flash alternately in red and blue to enter the Bluetooth pairing state. Step 2: Turn on the Bluetooth of the mobile phone, enter the Bluetooth list, select the Bluetooth name (MH02), and click Connect. After the connection is successful, the LED indicator will flash slowly in blue. 2. Automatically repair (after pairing). If the phone has been paired with the headset before, it will automatically repair when the headset is turned on again. If the phone and headset are not within the effective range, it will be disconnected, but when it returns to the effective range, it will automatically connect again. 3. Automatic search Once the paired BT phone is turned off or in an inactive state, the headset will automatically enter the pairing mode again. Priority: Phone>Music. When there is an incoming call, the music will be paused, and the music will automatically resume playing after the incoming call. How to operate it turn on:Long press the dial button for 3 seconds, the headset sounds a beep, and the blue and red LED lights flash alternately (no operation for 5 minutes, automatic shutdown). Shut down:Long press the dial button for 3 seconds, the headset turns off, the sound is reduced, the LED indicator flashes quickly, and finally turns off. Mobile assistant:Long press the function key (dial key) for about 2S, the mobile assistant will start automatically,Note: 3s will shut dow☀【SMART REMINDER】:Sound reminder function, easy to set the device according to sound remind,Support ppower displaying on iPhone, easy to know when will to be charged. ♬【WIRELESS MUSIC】: Bluetooth function can connect your mobile phone, free your hands, let you enjoy the freedom of riding, enjoy high-quality music, and surround the stereo sound to make your life full of fun. ♜【LONG WORKING TIME】:The device has a long standby time and working time by using an integrated rechargeable lithium-ion battery. Standby time can last for 160 hours. Working hours are up to 8 hours. It only takes 2 hours to fully charge. ❤【SIMPLE OPERATION】: Helmet Bluetooth Headset allows you to securely receive and trouble-free calls. Really free your hands. When riding a motorcycle, don't worry about missing any calls. It can be easily installed and operated during installation compared to other helmet headsets. ★【CONNECTION DISTANCE】: Built-in Bluetooth 5.0 is compatible with almost all Bluetooth-enabled mobile devices. The maximum effective distance is 20-23 meters, supporting smartphones, allowing you to stay connected to your phone and enjoy music, providing efficient and convenient communication during the ride.