Usually 3-5 Days. This version of the WMS 400 system features an SR 400 UHF Diversity Receiver and an HT 400 Rugged Wideband UHF Handheld Transmitter containing the magnificent C 900 microphone condenser element. This system is frequency agile with over 1100 possible channels, an auto set-up/frequency scan function, infrared setting of your transmitter, and a special high tech display that changes from green to red to alert you of any problems. It doesn't get any better than this at this price point!