Fangrui Product Details Uhf Wireless Transmission Protocol, Effective Transmission Distance Up To 80m And Built-in Multiple Sets Of Frequency Points, Which Can Interference Signals, Effectively Avoid Frequency Interrup- Tion And Frequency Modulation. New Low-power Design High-precision Low-power Design, The Battery Saves Half Of The Usual Power And Lasts Longer. Automatic Voice-to-frequency Mode, Handheld Infrared Frequency Point To The Host Infrared Frequency Point Ir Can Be On The Channel, Immediately Sing. Uhf Radio Waves, Stable And Anti-interference Transmission, No Serial Frequency, Continuous Frequency. Wireless System Is The Choice For Performers To Manage Their Own Voice, Free Wireless, Versatile, Simple Operation, Casing, Superior Performance And Long Service Life Plug Type :eu Plug,it Applies To Indonesia, Germany, France, Spain, Italy And So On Voltage: Ac100-240v Colour:black Material:abs+metal Package Contents: 1 X Receive Host 2 X Handheld Microphones Only The Above Package Content, Other Products Are