Features: Adopts high quality circuit board, stable and reliable. Broadband power amplifier for all types of wireless applications, FM shortwave radios remote control toys, digital radio, etc. Maximum output of 3 watts, 15V voltage supply, broadband work 2MHZ to 700MHZ can be work. This Power Amplifier's typical power Gain is 35 dB. Specification: Supply voltage: DC+12~15V (typical 15V 0.3-0.5A) Working frequency: 2MHZ-700MHZ, input and output impedance: 50 ohms; Maximum output power: 34.8dbm(3W) Maximum input power: Less than +10dBm Typical power Gain: 35 dB ( 300M Gain slightly decreased) Material: PC+metal colour: As shown Package Contents: 2 x Power Amplifier Only the above package content, other products are not included. Note: Light reflection 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.