Features: Digital 2.4G Frequency & Auto PairingAdopts 2.4G frequency band, which prevents other signal's interference, guarantees stable and hassle-free audio transmission. Transmitter and receiver support automatic connection after power on, and manual pairing is also easy to operate if you need. Long Distance Stable TransmissionThe transmitter and receiver can transfer stable and anti-interference signals up to 50m/164ft range with 12.5ms low latency. Integrated with DSP technology to optimize audio instantly, which is efficient in post processing and offers a high quality audio performance in live broadcasting. Low Cut Filter & Low Noise180Hz optional low cut function could filter out specific low frequency noises like wind, air conditional and traffic noises for clear sound output. And microphone windshield is offered to minimize background noise, delivering high quality recording even under noisy environment. Mono/stereo modes for choice. Real-Time Monitoring & 4-Level Gain AdjustmentThe receiver has a 3.5mm TRS headphone jack for monitoring recording effect in real time. 0-4 level receiver gain settings with adjustment range up to 8dB allows simple and effective optimization of signal levels. It is compatible with DSLR(with 3.5mm interface), mirrorless camera, smartphone, camcorder, audio recorder, etc. Built-in Rechargeable BatteryBuilt-in 400mAh rechargeable lithium battery, can work up to 5 hours after a full charge. Supports charging while recording, and charging transmitters and receiver at the same time via one charging cable. With indicator lights to show working status like power, charging, pairing and low cut function. Specifications: Brand: SYNCO Model: G1(A2) Color: Black Wireless Transmission: Digital 2.4G RF Frequency Band: 2400-2483.5MHz Working Distance: 164ft/50m(LOS area), 98ft/30m(NLOS area) Latency: 12.5ms Audio Input: 3.5mm TRS Mic Input Power Requirements: 3.3V-4.7V Battery Type: Built-in 400mAh Lithium Battery Battery Life: 5H Audio Output: 3.5mm TRS Mic Output, 3.5mm TRS Headphone Output Gain: 0-4 Level (0-8dB) RF Output Power: