... transmitting power: 27dBm/500mW transmitting distance:>4000metres frequency control:built-in frequency and phase lock loop AV input:analog AV signal input ... to provide the best price and service,thanksshipping by:Sea,DHL,EMS,Fedex,UPS,Gle and etclead time:1-5days based on order ... quantity and payment,payment way:Paypal,Western union ...