Item Type: Wireless Microphone SystemMaterial: MetalTransmitter: Microphone Maximum Input: 1.5 VrmsRF Carrier Frequency Range: 901M-910MMaximum Transmit Power: 8dBmAudios Frequency Response: 30Hz-20KHzWorking Temperature: -20 - 80Working Current: 120MAReceiver:RF Maximum Input Signal Amplitude: 10 bdBmReceive Carrier Frequency Range: 901M--910MReceive Sensitivity: -85dBmAudios Signal To Noise Ratio: 96dBAudios Sampling Frequency: 48kHzWorking Temperature: -20 - 80Audios Frequency Response: 30Hz-20KHzWorking Current: 120MATransmitter Built in Battery: Lithium Battery x 1 1200mAh (Shipped with built in battery)Receiver Built in Battery: Lithium Battery x 1 1200mAh (Shipped with built in battery) 1XLR INTERFACE: The microphone wireless system has XLR interface, just plug in and convert your favorite microphone into wireless microphone 2STABLE TRANSMISSION: Microphone wireless system adopts advanced wireless UHF technology, and the signal transmission is more stable 3AVOID INTERFERENCE: Equipped with 10 channel microphone wireless system, can switch channels as needed to avoid interference from other devices 4LITHIUM BATTERY: This microphone wireless system has built in rechargeable lithium battery, can work continuously for 3 hours when fully charged 5APPLICATION: Widely used for live broadcast, recording studio, conference, speech, interview, karaoke, etc. Get rid of the limitations of wired, let you enjoy the fun and convenience of wireless