WK BD520 Portable Wireless bluetooth Earphone Mini Stereo Sports Handsfree Headset Earphone With Mic

Features 1 Smart one for two you can connect two mobile phones at the same time 2 Support warm voice prompt 3 Automatically connect back will automatically connect back to the default last mobile phone when booting 4 Many improvements adding double lines on the original basis to create a unique shape 5 It has better sound quality with lower noise higher sensitivity and stronger anti interference Specifications General Specification Brand WK Model BD520 Color Black White Red Wearing Type In ear Net Weight g 21 5g Dimensions cm inch 34 6 14 9 10 9Technical Parameters Microphone Yes Wired Control Support bluetooth Version 4 1 Transmission Distance 10m Rated Power 3mW Receive Sensitivity 1103dB Impedance 1615 Frequency Response50 10KHz Battery Capacity 100mAh 3 7V Charging Time h 2h Taking Time 6h Working Time h 6h Standby Time h 200hPackageIncluded 1 BD520 Wireless bluetooth Earphone 1 Charging Cable 1 Manual