Wireless headset Transmit frequency:2.4-2.486ghz Modulate mode:gfsk Frequency range:2403mhz-2480mhz with frequency jump automatically. Sampling rate:32k/7.8k, sampling precision:16bit Effectyive distance:up to 20 meter Sound input impedance:1k Working voltage:5v Consume current:55ma Stero resloution:70db(typ) Frequency response range:20hz-20khz Sensitivy:-94dbm Harmonic distortion: 0.3(1w) S/n:85db(typ) Dynamic range:98db(typ) Operation temperation:-10-85¦
