Item Type: Wireless Microphone System Material: Metal Transmitter: Microphone Maximum Input: 1.5 Vrms RF Carrier Frequency Range: 901M-910M Maximum Transmit Power: 8dBm Audios Frequency Response: 30Hz-20KHz Working Temperature: -20 - 80 Working Current: 120MA Receiver: RF Maximum Input Signal Amplitude: 10 bdBm Receive Carrier Frequency Range: 901M--910M Receive Sensitivity: -85dBm Audios Signal To Noise Ratio: 96dB Audios Sampling Frequency: 48kHz Working Temperature: -20 - 80 Audios Frequency Response: 30Hz-20KHz Working Current: 120MA Transmitter 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) Package List 1 x Transmitter 1 x Receiver 2 x USB Cable 1 x User Manual 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