The BOYA BY-WHM8 Pro comes with a UHF wireless handheld microphone transmitter with 48 channels that are able to work smoothly in a crowded environment. It features an LED display with information on level, battery status, mute, and channel selection. The BY-WHM8 Pro has a cardioid dynamic capsule that allows it to capture target sound accurately. You can use this Microphone for broadcasting, live streaming, presentations, and more. This Microphone comes with group channel A or B. You can select the group channel A or B through the easy-to-read LCD display. The BOYA BY-WHM8 Pro Wireless Handheld Microphone is powered by two AA batteries. This Microphone is compatible with bRX8 Pro or SP-RX8 Pro. The BOYA BY-WHM8 Pro comes with a 1-year warranty.