REMAX RB-195HB Stereo Multi-points Wireless Bluetooth Headphone
Bluetooth version : 4.1 Bluetooth audio Protocol :
A2DP1. AVRCP1 2. HFP1 4.
6 communication distance : 10 m Bell diameter : 40MM
in impedance : 320115 frequency response range :
20~20KHz sound / noise ratio : 80dB for Distortion : 1,
continuousWorking time : 14 hours
