1. Stylish and cool appearance design, built-in high-quality Bluetooth chip, let music surround your life and enjoy the feast of music. 2. Hands-free function, truly freeing your hands, you can ride safely, and you don't need to lift your phone to make calls, which is 3. Built-in rechargeable lithium-ion battery, long standby time, long working time, low battery voice alarm, easy to know when to charge. 4. New waterproof structure design 5. Using the new Bluetooth 5.0 Bluetooth technology, transmission, low power consumption, with automatic answering function, you can also manually answer and reject calls, safe and fast, built-in high-quality anti-interference microphone, can effectively achieve hands-free answering and hang up. High-fidelity sound effects, supports previous and next song switching functions, volume increase and decrease, playback pause, automatic callback and other functions, easy to operate. Chip solution:QCC3021 Bluetooth version:Bluetooth 5.0 Range of use:300 meters Frequency range:2.402 - 2.480GHz Supported protocols:A2DP, HFP, , VRCP, SPP Supported CODECs include:, AAC Charging time:about 2 hours Charging input:5V DC equal 500mA Battery type:3.7v 900MAH Speaker:40MM tuned speaker, fully display the high, medium and bass Standby time:100 hours Music working time:about 25 hours (80% volume) Talk time:about 25 hours (80% volume) Working temperature:-10 - 55 Can be connected to 2 mobile phones at the same time, supports voice assistant, intelligent noise reduction, power broadcast, IP67 deep waterproof Colour:Black Material:ABS Package Contents: 1 * host 1 * speaker kit 1 * decorative strip 1 * headphone clip 1 * charging cable 1 * English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.