B5 Wireless Bluetooth 4.0 Headset | Audio

Function: Support music, multi-point connectionChannel: StereoHow to use: Head-mountedApplicable gifts occasions: opening ceremony, awards commemoration, anniversary celebrations, advertising promotions, trade fairs, festivalsFrequency response range: 20Hz-20KHzBluetooth version: 4.0+EDROutput power: 2*10mWSpeaker: 40mm...