Parameter Blue-tooth version: Blue-tooth 4.2 Supporting protocols: A2DP v1.3, AVRCP v1.5, HFP v1.6, HSP v1.2 Chip: Loda AB1523S Horn diameter: 8 mm Speaker impedance: 16 ohm Speaker power: 7mW Battery: lithium polymer battery, 160mAH ...

Universal Blue-tooth 5.0 Wireless Headset, Sport Handsfree Stereo Headphone ,Portable Single-Sided Earphone ,Stylish and Beautiful,Comfortable and Snug Fit Product features Model: v7 Long standby: 250h Listen to music often: 20h Call times: 25h...