1. Bluetooth version chip: Ruiyu 5.02, Bluetooth protocol: A2DP 1.2/AVRCP 1.0/HSP 1.0/HFP 1.53, speaker diameter: 10mm4, Bluetooth transmission distance: 10m audio format: SBC/AAC5, battery capacity: A 50mAH charging bin 3000 mAh 6, music playing time: 3 12 hours 7, talk time 2 hours 9, standby time: 300 hours 10, charging interface: Micro USB Type11 language joy function, Miao Li prompts CTRL to enter/double-click translation 1ALT white car/double reading | right-click function menu 12, one drag and two functions 13, color: black 14, waterproof level: 5 waterproof level 15, microphone: 100Hz-8000Hz16, equipment compatibility: support Desktop computers without Bluetooth function should be used with Bluetooth adapter.