Wireless Bluetooth Headphones,Headset for Oneplus,Sunfei Wireless Transformers Bluetooth Stereo Earphone Headphone (Blac

Bluetooth Version: V4.1+EDR Feature: Wireless Headphone
Function: Answering Phone, Bluetooth, Microphone Profile support: A2DP, AVRCP, Headset, Handsfree
Power supply: rechargeable battery Frequency: 2400.0--2483.5MHz
Operation Range: 10M Talk Time: about 6 hours
Standby time: about 90 hours Charge time: about 2 hours