Wireless Transmission System: The ES-386 is a wireless transmission conversion system that converts your wired microphone into a wireless microphone while maintaining maximum o quality. Utilizing UHF technology, it offers strong anti-interference performance. The frequency band is 540.0MHz-590MHz, with a wireless transmission range of up to 98 feet, allowing unrestricted movement without cables. Device Compatibility: The receiver supports selectable operating voltages (0V, 3V, 48V), compatible with dynamic microphones (0V) and condenser microphones (3V, 48V). It features remote volume control with 7 adjustable levels (VOL1-VOL7). Rechargeable Battery: The unit has a built-in rechargeable battery providing approximately 5 hours of operation on a full charge. It can be conveniently recharged using a USB cable. Excellent Compatibility: Eliminates the need for XLR to 6.35mm adapters. The transmitter works with instrument microphones, condenser microphones, and dynamic microphones. The receiver connects seamlessly with o interfaces such as PA systems, power amplifiers, mixers, and vocal processors. Ideal for use in recording, live performances, interviews, conferences, home karaoke, and more. Color: Black Material: Plastic Package Contents: 1 x Microphone Transmitter, 1 x Microphone Receiver, 1 x Male to 6.35mm Cable, 1 x Female to 6.35mm Cable, 1 x Female to 3.5mm Cable. Note: The package includes only the items listed. Lighting and display differences may result in slight color variations between the image and the actual product. Measurement may vary by +/- 1-3cm.