Add wireless functionality to your wired-setup with this plug-in receiver and wireless UHF microphone. It provides standard 6.5mm plug-in functionality to suit just about any PA system or amplifier. 7-channel options to reduce interference. USB charging cable included. Features: - UHF wireless - Rechargeable receiver - Plug and play operation - Lithium polymer battery for receiver - Output via 6.5mm plug Specifications: Receiver Output: 6.5mm Plug Power Output: 13dB Specifications Width : 36.0mm Height : 19.0mm Depth : 105.0mm Weight : 45.0gr Dimensions for : Receiver Battery used for : Transmitter Size / Shape : AA Battery quantity : 2.0pc Batteries can be replaced : true Rechargeable battery required to power : Main Product Shape : Lithium Rechargeable Battery Cell/Pack Voltage : 3.7V Batteries included : true Mains charging charge time : 4.0hr Type : Handheld Polar Pattern : Omnidirectional Impedence : 600.0? Sensitivity : -54.000000dB Microphone Channels : 7.0ch Channel A Carrier Frequency : 700.0MHz, 730.0MHz Modulation Type : FM Dimension details : Transmitter Dimensions for : Microphone Length : 255.0mm Diameter : 57.0mm Weight : 223.0g