EMX-1 wireless monitoring system, UHF wireless digital signal transmission, adopts highly integrated chip design, automatic ID code pairing, has extremely low latency and ultra-low noise, stable transmission signal, excellent reception headphone amplification effect, built-in lithium battery battery, about 5 hours, about 5 hours, is a portable wireless monitoring system. Frequency range: 560-590MHz (depending on the specific version) Delay rate: 4.5ms Adjustable channel: 16 adjustable frequency Channel spacing: 0.5-2.5MHz Modulation mode: digital modulation Frequency stability: ±3ppm Frequency response: 40Hz-20kHz Working range: 30m (up to 50m in the best environment) Built-in working voltage: 3.7V, 1000mAh lithium battery Specifications: B: One-to-one Color: Black Material: Plastic+Metal Package Contents: 1 * Transmitter 1 * Receive 1 * 6.5MM XLR adapter 1 * USB cable 1 * Monitor earphone 1 * Storage bag