Please visit us by for more new models. 1) Frequency range: 88 - 108mHz 2) S/N: 50dB 3) Power output: 20mW 4) Channel frequency response: 250Hz - 6.3kHz Inner packing: 1pc/blister card Outer packing: 200pcs/carton Carton dimensions: 57x 49.5 x 33.5cm N.W.: 13.8 kg G.W.: 8.1 kg