Detailed Product Description

Transmitter *Radiate Frequency: FM 49.85MHz *Radiate power: max120dB *6F22(9V) battery, or used AC/DC adopter *Audio input: <500mV Headphone *Size "2450" recharge Li-ion battery , AC/DC recharge adopter *Battery recharge life: >300 cycle *Receiver frequency :FM 49.85MHz *Audio frequency response: 80HZ~15KHZ(+/-3dB) *S/N: >45dB *Out put power: >50mW *Receiver distance: >40 meter(none impediment)