The WM80UDB UHF microphone is a state-of-the-art wireless device designed for superior sound quality and convenience. It operates in the frequency range from 640.8 MHz to 690.1 MHz, ensuring a stable connection and minimal interference. The frequency response is 50 Hz to 20 kHz, which allows for faithful sound reproduction over a wide tonal range.Two wireless microphones and a receiver are included, making it ideal for bands, speakers and other professionals.An extremely practical feature is that the wireless microphones can be powered by AA-type batteries, providing easy access to a power source, especially in situations where access to an electrical outlet is limited. The receiver, on the other hand, is equipped with an 1800 mAh lithium-ion battery, which, when charged for about 3 hours, allows you to use the device for up to 7 hours. This means that you can use the microphones for long periods of time without worry, even without access to a power source.An additional advantage of these wireless microphones is their compatibility with Bluetooth-enabled gaming systems. This makes it easy to connect them to a variety of audio devices, greatly expanding the possibilities for their use. Whether you're a musician, a speaker or a presenter, the UHF WM80UDB microphones will provide you with excellent sound quality and reliability at any exhibition.