theFM wireless headset is main suitable for home coputer, tv,have CE, ROHS FCC certerficate, best-selling the Europe ... emitter and wireless headset wireless headset, can receive the channel TV, computer, DVD, DLP projection, VCD,, suitable forFamily and babies, ... needs of patients, using headset can be received by the sound,Technical parameter Transmitting frequency 85±0.5MHZ SensitivityFM≤20uv AF ...