QUICKMAN Sports Bluetooth V4.0 Headband Headphone w/ Microphone - Black + White + Multicolored
Bluetooth protocol: HSP / HFP / A2DP / AVRCP; Effective range: 5~8m; Frequency: 2.400~2.480GHz; Bluetooth and MP3 playing time: 6~7h; Battery: 3.7V / 320mAh rechargeable li-ion battery charging time: 2~3h; Suitable for single channel talking; Supports stereo music playing AVRCP and distance music control (play pause last next)