Color: As shown in the picture Material: Plastic + Metal For RF Power Amplifier 300MHz (60W) Range Extender The main function of this product is to amplify the low-power signal of the original 285-315MHZ device, increase the power of the signal, so that the small device has high power to make the communication distance farther and the voice clearer, expand the coverage range, and have an automatic transceiver conversion circuit inside for transceiver switching. It is suitable for handheld U-band walkie-talkies and data transmission equipment on the market, and can also be used for various one-way data transmission radios and various radio equipment tests, electromagnetic compatibility tests, etc.! 1. Technical indicators Operating frequency: 285-315MHZ Input power: 1-5W (general handheld walkie-talkie) Receiving frequency: 50-1000MHz Working mode: half-duplex (cannot receive in transmitting state) Receiving loss: 0.5dB (negligible) Output power: 60W (typical value) Supply voltage: 12-15V (typical value 13.8V) Working current: 15A (typical value) Standby current: about 50mA (no power supply required for reception) Heat dissipation method: 40 degrees intelligent temperature control air cooling Color: As Shown Material: plastic Package Contents: 1*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.