*Technology Bluetooth V4.1 +EDR
*Mode Stereo
*Carrier frequency 2.4G ISM BAND
*Effective range Up to 15 meters(360°)
*Signal-to-noise ratio 90dBr@1KHz
*Frequency response 20Hz~20KHz
*Operating time 15 hours
*Power supply 2 normal AAA batteries(not included)