Specifications Frequency Band UHF 565-584MHz Type Condenser Polar Pattern Cardioid Frequency Response 50-16kHz S/N Ratio More than 58dB Power Supply Transmitter: 2 AA Batteries Receiver: 5V USB power Output Connection USB 2.0 Shipping Weight 0.8 kg
https://www.dell.com/is/business/p/dell-u2412m/pd