UHF Wireless Handheld Microphone System, 30 Adjustable Frequencies Cordless. STURDY BUILD WITH DETAILS:Metal UHF wireless receiver and UHF handheld microphones are designed to last, suitable for heavy use.The system also comes with a solid carrying case for safe transportation. AA batteries are also included for your convenience 30 ADJUSTABLE FREQUENCIES: State-of-the-art circuitry designs 30 adjustable frequencies sets for this cordless mic 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. Welcome to come to us for troubleshooting or replacement of discontinuous/defective parts. As our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Microphones & Wireless Systems". The seller is "around_photo_sound" and is located in this country: US. This item can be shipped worldwide.