Fangrui Product Details 10 Channels:wireless Audio Transmission System With A Updated 10 Channels,can Support Up To 10 Sets Of Music Instrument Working At The Same Time(each Instrument Connect To Corresponding Speaker). One Transmitter Can Connect To 10 Receivers Simultaneously,a Transmitter Receiver For Live Performance. No-interference : The Wireless Guitar System Adopts Advanced Uhf Technology, High Frequency Which Less Than 2ms Latency, No Lag Or No Signal Loss. Effective Range Is About 30-50m . Strong Anti-interference Ability Delivers Great Audio Quality And Stable Signal. Plug Play: Only Need To Long The Signal Key To Match Transmitter And Receiver At The Same Time, No Other Operation Is Required. Applicable For Electric Guitar And Bass .no Wires,more Freedom,less Than 2ms Latency, You Can Get The Clear And High Quality Sound From Your Guitar Without Any Delay. Convenient Charging : Built-in Rechargeable Lithium Battery, Working Time Is Above 6 Hours(circumstantial)after Fully , And Comes With A Dual-ended Usb C