Feature: 1. Upgrade the NFC function, and the mobile phone sensor can be connected with one touch. 2. Controllable indicator light, soft and not glaring, the brightness of the light increases/decreases accordingly with the volume. 3. Built-in 1200mAh rechargeable lithium battery, continuous listening to music for about 8 hours, battery life up to 30 4. Support U disk/TFcard playback and launch, support MP3/WMA/SBC/WAV/A52/FLAC/AAC/AIF/AMR/APE format. 5. Support 5~8 meters red private model external remote control, mode/signal/volume/up and down song/mixing/microphone and other operations. 6. Built-in 6.5mm high-definition microphone, which supports microphone access for singing, and built-in anti-howling design. 7. The product connection is simple, without any cumbersome drive and APP download. Description: Product Name: o Adapter Product model: M16 Pro Bluetooth-compatible version: Bluetooth-compatible V5.1 Support protocol: A2DP/AVRCP/HFP/SBC Working frequency band: 2.402GHz -2.480GHz Power level: Power level 2 (Class II) Sensitivity: -85dBm