Features: VHF wireless conference microphone, mainly designed for conference speech, church, lecture hall and other occasions. A good helper for conference applications. Uses VHF frequency band and selected frequencies to avoid the frequency interference, and adopts D-PLL RF frequency lock technology for accurate frequency and stable performance. Professional audio companding technique for reducing the noise and increasing the dynamic range; advanced pilot signal lock function can better avoid interference. Not only supports wireless convenient and fast use(50m operating rang in open area), but also the transmitter is equipped with XLR interface, which can be wired to mixer and power amplifier, and supports 48V phantom power supply. The transmitter supports the power supply of AA battery(not included), and has the function of low power indicator to prompt the replacement of battery. The receiver has 6.35mm unbalanced output for convenient connection with various audio equipment; and adopts USB power interface, which can be conveniently powered by various devices with USB function directly.