What you get: 2 x handheld microphones, 1 x receiver, 2 x anti-slip rings, 1 x 6.35mm audio cable, 2 x mic covers, 1 x power adapter, 1 x manual. Easy to Operate: Just turn on the receiver and mics, they will match automatically. Note: It is not compatible with laptop, iPad, cellphone and AV receiver. 2 x AA batteries (not included) are required for each mic. Sturdy and Durable Material: The all metal mic with steel mesh grille is particularly resistant to impact and corrosion. The receiver box has separate volume control for each wireless mic. Enhanced Signal Stability: With 15 adjustable frequencies per UHF mic and long transmission range (200ft/60m) in open space, ensuring that up to 15 sets can be used simultaneously without worrying about interferences. Clear and Pristine Sound Quality: With professional cardioid dynamic capsule, the system can reproduce more excellent, clear, pure and full sound and eliminate background noise and howling. Ideal for Karaoke, Home KTV, Big party, DJ, Wedding, Class use.