Bj-300plus High Power Cb Radio Amplifier. Specifications: Waterproof / Water-Resistant: No Walkie Talkie Type: Car Storage Channel: 3-30MHZ Output Power(w): >50w Model Number: BJ-300 Maximum Range: >50km Material: Metal Is_Display: No Dimensions: 12*12.5*4.5mm Compatible Radio: CB Radio Battery Capacity(mAh): Depends on Radio Frequency Range 3-30MHz Power Supply Voltage 12-14V Input Current 14-20A Input Power 3-5W (do Not Exceed This Range, or Maybe This Device Will Burn Out) Single Side Band Input Power 2-10W FM Output Power Maximum Output 100W AM Output Power Maximum Output 200W Single Side Band Output Power Maximum Output 300W Working Mode FM- AM-CW-SSB Fuse Blown 2×12A Size 120 × 225 × 38mm Weight 750g . Your order will be shipped from abroad so please allow the necessary time of at least 14 work days for delivery due to ongoing delays in postal deliveries globally.