Microphone wireless transmission system. The NUX B-3 is a rugged 2,4 GHz wireless microphone system designed for those who want to enjoy their favorite wired microphone as wireless. The B-3 is a rechargeable battery powered system that quickly and easily connects to the mic and input xlr jacks. No wires at all and no costly batteries required as it is fully USB rechargeable. 32-Bit / 48 kHz high-resolution audio quality. 6 channels. Range: Up to 30 m. Latency: <4 ms. Integrated Li-ion battery. Battery life: approximately 5 hours. LED indicator for the state of charge. Dimensions: 107 x 25 x 26 mm. Weight: 0,125 kg. Includes USB charging cable and adapter from XLR to 3,5 mm mini jack. Colour: Black