TV Headset TVMate 02 Pro

Battery Life (working time) :
approx 5-7 hours under wireless hearing mode
Battery Capacity:350mAh
Battery Nominal Voltage:3.7V
Transmission Type： 2.4GHz ISM Band
Transmission Range ： >100feet
Audio Frequency Response： 30-20000Hz
Transmission Frequency Response: 2403MHz-2478MHz
Max SPL : 130dbSPL
Headset Dimensions : 165.4*21.1*206.2MM
Transmitter Dimensions: 114*81.2*31MM