<p><b>Specifications:</b></p> <p> RF Modulation: GFSK (Gauss Frequency Shift Keying)</p> <p> Frequency band: 2.4G (2405-2478MHz)</p> <p> Frequency response: 35Hz-14KHz±3dB</p> <p> Signal/Noise: 84dB or more</p> <p> Distortion: 0.05% or less (32ohm, 1 KHz, 65 mW output)</p> <p> FR output level: 3mW</p> <p> Earphone output level: 32hom, 65mW</p> <p> Reception sensitivity: -90dB+/- 3dB / 0dB=1V/Pa, 1KHz</p> <p> Audio input connector: 3.5mm mini jack</p> <p> Operation range: 50m (164 ft)(without obstacle)</p> <p> Power requirement: 2 * AAA battery(not included)</p> <p> Consumption power: Transmitter: 3V/70mA</p> <p>                   Receiver: 3V/70mA</p> <p> Transmitter & Receiver Size: 4.5 * 7 * 3.5cm/ 1.8 * 2.8 * 1.4in</p> <p> Transmitter & Receiver Weight: 47g/ 1.7oz(without battery)</p> <p><b>Package List:</b></p> <p> 2 * Transmitter</p> <p> 1 * Receiver</p> <p> 2 * Lapel Microphone</p> <p> 1 * 3.5mm to TRS Audio Output Cable</p> <p> 1 * 3.5mm to TRRS Audio Output Cable</p> <p> 1 * Cold Shoe Mount</p> <p> 1 * Hard Case                </p>