Headphones,
Product Description:
Bluetooth version: v4.2,
Supports the following Bluetooth profiles: l2CAP/A2DP/HSP/HFP,
Communication range: 10 meters,
Battery capacity: 500 mAh,
Duration of use: 4 hours,
Call duration: 3 hours,
Audio port: DC 5V,
Signal frequency: 150Hz-18KHz
