Wireless Transmission System: The ES-386 is a wireless transmission conversion system that converts your wired microphone into a wireless microphone while maintaining maximum audio quality. Using UHF technology, it offers strong anti-interference ability. The frequency band used is 540.0MHz-590MHz, and the wireless transmission range reaches 98 feet, allowing freedom of movement without cable restrictions. Device Compatibility: The receiver of the ES-386 can switch operating voltages (0V, 3V, 48V), compatible with dynamic microphones (0V) and condenser microphones (3V, 48V). It features a volume adjustment function (VOL1-VOL7), enabling remote volume control. Rechargeable Battery: The device has a built-in rechargeable battery that lasts approximately 5 hours on a full charge. You can recharge the device anytime using a USB cable, ensuring extended usage. Excellent Compatibility: The device eliminates the need for XLR to 6.35mm adapters. The transmitter is compatible with instrument microphones, condenser microphones, dynamic microphones, and more. The receiver works with audio interfaces such as PA systems, power amplifiers, mixers, and voice processors. Ideal for recording, stage performances, interviews, live events, conferences, home karaoke, and other applications. Color: Black Material: Plastic Package Contents: 1 x Microphone Transmitter 1 x Microphone Receiver 1 x Male to 6.35mm Plug 1 x Female to 6.35mm Plug 1 x Female to 3.5mm Plug Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement error allowed is +/- 1-3cm.