Working frequency: 2MHZ-700MHZ, input and output impedance: SMA 50 ohm Maximum output power: 34.8dbm (3W) Typical power gain: 35 dB (more than 300M gain slightly decreased) Maximum input power:Less than and10dBm Module size: 46 x 32 x 15mm ( length x width x height ) Application: Broadband RF power amplification, suitable for HF FM VHF UHF FM transmission of radio applications, short-wave FM remote control toys, radio walkie-talkies, digital radio stations, etc., can output up to 3 watts, 15V voltage supply, 2MHZ to 700MHZ can work frequency range. Supply voltage: DC and 12 - 15V (typical 15V 0.3-0.5A) pad interface Measured power indicator: 2-300M: and34dBm max 3W 300-500M: more than and32dBm Color: Black and green Material:PCand metal Package Contents: 1 x RF Power Amplifier Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.