* Waterproof：IPX68
Built-in 32G TF Card  
* Support system: Android/Windows/IOS
* B/T profile: HSP/HFP/A2DP/AVRCP
* Bluetooth chipset: BT8932B　(6.0)
* Support code: SBC,AAC
* Transmission Range: 10m
* Speaker driver: 18mm 
* Frequency response: 20-20KHz
* Impendance: 8Ω
* Earphone battery: 220mAh 
* Talking time: 8-10Hours （70% volume)
* Music playing Time: 8Hours
* Earbuds charge time: 2H
* Standby time: 300H
* Use temperature: -20°C~60°C        

Waterproof IPX8, Built-in 8G TF Card,   Press control, Volume adjustment,previous/next song, One key Siri, Accept/Reject/Hang up call.