Features: brand new and high quality. Adopts high quality circuit board, stable and reliable. Broadband RF 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 RF Power Amplifier 's typical power Gain is 35 dB. RF Power Amplifier only, other accessories demo in the picture is not included. Specifications: Material: Metal Size: app. 46x32x15mm / 1.81x1.26x0.59inch Color: Green, Black Quantity: 1 Pc 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 (Greater than 300M Gain slightly decreased) Note: No retail package. Please allow 0-1mm error due to manual measurement, pls make sure you do not mind before you bid. Due to the difference between monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x RF Power Amplifier