STURDY BUILD WITH DETAILS：Metal UHF wireless receiver and wireless microphones are designed to last, suitable for heavy use. The wireless karaoke microphone system also comes with a solid carrying case for safe transportation.Included AA batteries of cordless microphones are for your convenience.The cordless mic set also comes with 2 anti-rolling rings to color-code your handheld microphones | 30 ADJUSTABLE FREQUENCIES: State-of-the-art circuitry designs 2x30 adjustable frequency groups for this microfono inalambrico set in 500MHz band, allowing up to 30 units to use at the same time without interference. You can also enjoy the freedom of changing frequency if preset frequency failed. Operating distance is up to 200ft in open space line of sight | STABLE WIRELESS PERFORMANCE: Cardioid capsule and improved circuitry design of each handheld microphone can capture sound and transmit smoothly without dropouts, hiss, or feedback, delivering robust, clean, and stable sound quality, The karaoke microphone wireless is suitable for applications like church, weddings, public speaking, instruction, conference, and outdoor events | BOX CONTENT: 1 x carrying case, 1 x UHF wireless receiver,2 x UHF wireless mics, 1 x power adapter, 1 x 1/4’’ audio cable,1 x 6.35mm to 3.5mm adapter, 4 x AA battery，1 x user manual, 2 x anti-roling rings,2 x Antennas, 4 x rubber feets | Purchase with Confidence: Phenyx Pro products are crafted with premium components and precision engineering, ensuring trusted quality and lasting reliability. We stand firmly behind every product we make