Wireless cheap Microphones karaoke system

Product Name: Wireless cheap Microphones karaoke system
Includes 2 microphones Wireless Professional Microphone System: Updated UHF microphones supports transmission distance up to 200feet (60M) without distortion or loss of sound. Other features like stable signal, no cheap delay, no radiation, anti-howling, anti-jamming, distortion <0.1% and adjustable frequencies. Charge for 3-4 hours, and run for approximately 10 hours Plug and Play: The dynamic microphones and receiver pairs automatically once are on power. Adjustable Frequency Range: CH A: 903-915MHz, CH B: 916-927MHz. Not compatible with Bluetooth speakers, MacBooks and phones. Please make sure you plug in mic jack, not aux jack, otherwise no sound can be heard. Wide Compatibility: comes with a 6.35mm to 3.5mm converter, making it accommodate more devices like amplifiers, PA system, karaoke machine and powered speakers etc.