DNA VM DUAL VOCAL SET is a highquality wireless microphone system based on digital technology. The set consists of a receiver UHF and two handheld microphones. It is ideal for concerts and live performances, events, weddings, karaoke clubs and mobile DJ work. The microphones are equipped with an easytoread LCD display indicating the transmitters operating frequency and battery level, as well as an infrared receiver so that the output signal can be synchronized with the receiver. The devices are powered by two AAtype batteries, which allow the microphones to operate for up to 8 hours! The second part of the system is an RF receiver with a frequency range of 518 to 542 MHz. The rear part of its housing features XLR outputs for channels A and B, a jack output 14, a power supply socket and two BNC antenna connectors. The front section houses the power switch, two volume potentiometers, an infrared receiver and a dual control panel with LCD display. It shows the current system parameters, such as RFAF signal level, receiver frequency setting, selected operating channel, and whether the microphones are currently on or off. Using the Up, Down and Set buttons, we can make a manual frequency selection or perform an autoscan, during which an uninterrupted frequency is automatically assigned to the system devices. The DUAL VOCAL SET of the VM series is a professional wireless microphone system that is especially appreciated by musicians and vocalists, wedding bands, event companies and DJs. Cultural centers, schools, as well as companies and institutions are also eager to use it. If you are wondering which wireless microphone set to choose for your needs, its worth looking at the DNA brand from Music Express. Technical specification Modulation 4 DQPSK Frequency range 518542 MHz, 2x48CH Sampling rate 48 kHz Transmission speed 204.8 kbps Dynamic range 90dB Total harmonic distortion Audio transmission delay SN ratio 96dB Frequency response 3020KHz RX sensitivity Original packaging and filling.