Wireless sports stereo headphones with Bluetooth V4.1
Main specifications:
* Bluetooth version: V4.1+EDR
* Bluetooth profiles: HSP/HFP/A2DP/AVRCP
* Talk time: about 3-4 hours
* Standby time: about 100 hours
* Operation range: 10m
* Charging time: approximately 2 hours
* Charging voltage: DC 5V
* Color: black, white
* Headset size: 40*18*8mm
* Headset size: 7g
* Gift box size: 102*131*47 mm
* Full set weight: 76g
* Color: black

Futures:
*Support 2 kinds of languages for option (English and Chinese)
Product features: original import chip
*Can connect 2 smartphones at the same time
*Power display on Xiaomi/Apple mobile phones
*Answer/hang up calls, enjoy music, volume control, voice dialing, the latest number redialing
*Use the advanced digital signal processing (DSP) technology
*Can insert an external a headset line (universal micro-USB charging interface)

Packing contents:
1*X1 Bluetooth headset
1*headset cable
1*USB charging cable