Check the listing for details. PRORECK MX44 4-Channels UHF Wireless Microphone System with 4 Hand-held Mics Set. Color: Black, Condition: New. Listed at 139.99 USD. Perfect for indoor outdoor activity, such as party, church, speech, weeding, family get together, etc.UHF microphone system delivers clear and loud audio signal and is much more stable than the VHF; Work great with all PRORECK speakers; Four XLR outputs and one 1/4 inch (6.35mm) mix output.Operating range: 200 feet within line of sight; Separate volume controls. AF and RF signal indicator; 8 kinds of EQ modes(JAZZ POP COUNTRY ROCK, etc) .Four undirectional cardioid microphones are made of metal and energy-saving; Each microphone needs 2xAA batteries(not included); Fixed frequency: 607.5/615.5/653.1/658.3MHz; Note: 2 sets can not be used together. Suitable for 110V/230V.Comes with 1 x Receiver, 4 x microphones, 1 x 6.35mm TS cable, 1 x power charger, 1 x user manual. *Not applicable to rechargeable battery