Original BT 5.0 Headphones with Noise Cancelling Mic 9D Stereo Sound Custom Neckband Earphone Wirele

Item Number BO-N005 Type Wireless Color Black, Red or Customized Charge Time 1 Hours Working Time 13-15 Hours Battery Capacity 150mA Impedance 32(Ω)+/-5% Sensitivity 115(dB)+/-3dB at 1KHz,6m