Description: UHF free frequency modulation, Plug and play,no need app or configuration, easy to use. Two Microphones, headset and lavalier microphone switch freely to meet your needs in different situations, making it suitable for all occasions. LED Display: Clearly display data such as power, signal, and FM frequency 1/4 Output, Supports Mic input 3.5mm/6.35mm port, Not supports line-in 3.5mm port, compatible with multiple devices, works with any PA, loud speaker, mixer, amplifier or karaoke machine that has mic input and mic volume control Long-distance receiver, stable receiving within 100 meters, Great for live performances like church, weddings, presentations, school plays, trainings and public speakings. Specification: Material: Alloy Size: 52 x 65mm/2.0 x 2.6 inch Modulation Mode: Digital Frequency Modulate Frequency range: 500MHz-930MHz Debug mode: Dqpfsk Frequency response: 30Hz-18KHz±3DB Preset frequency: 25 (automatic pairing) Signal to noise ratio: ＞96DB Battery specifications: built-in lithium battery Package Includes: 1 Piece Headset Microphone 1 Piece Lavalier Microphone 1 Piece Bodypack Transmitter 1 Piece Rechargeable Receiver 1 Piece Instruction Manual Note: 1.Please allow 1~3 cm error due to manual measurement, thanks. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand, thank you