Features: It has dual frequency channel and broad audio response range with low distortion so you can enjoy cordless singing to karaoke music and mobility for energetic stage performance; The 2 cardioid hand-held dynamic microphones will accurately receive your voice, filter out the background noise and suppress howling. for Ideal for Karaoke, Home KTV, Big party, DJ, Wedding, Class use. Up to 164ft long range reliable performance in wide open space line of sight; Both the receiver and the mic has a power ON / OFF switch and the receiver has LED status signal indicator light and dual independent antenna. Specifications: Material:ABS Color:Black Receive Sensitivity: Less than 2V for Image rejection: Greater than 40dB Audio output impedance: 600 Audio output level: 0-0.5V Power supply: AC220-240V 50/60Hz Power Consumption: 1W Frequency stability: 0.005% Modulation method: vhf Maximum modulation: 75KHz Pickup method: (moving coil) (LWM-6188/C/D) Power supply used: 9V Batt Power consumption: Less Than 30mA Option Type:European Plug Microphone;US Plug Microphone; Package Includes: 2x Microphones 1x Receiver 1x Audio Cable 1x Adapter 1x Manual note: Please allow 1-2cm errors due to manual measurement,pls make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.