Features 1.Stable Signal Transmission: High performance wireless microphone technology, the signal is stable, can penetrate the wall, up to about 50?100 meters wireless receiving distance 2.Dual Microphones: Comes with two microphones for versatile use, perfect for outdoor performances, karaoke, and home sound. Intelligent LED display. 3.Superior Performance: Dynamic microphone head, efficient pickup, microphone receiving signal ability, transmission farther, more stable 4.Widely Applicable: Wireless microphone easily connects to a wide range of devices, devices with microphone interface can be connected to use. Live sound card available, plug and play. 5.Long Battery Life: The receiver requires a 18650 battery (not included), while each microphone requires 2 x 18650 batteries (not included). specificationItem Type: Wireless Microphone Material: ABS Receiving Distance: Approx. 50m-100m/164.0-328.1ft SNR: >85db Output Level: 200MV5MV Receiver Battery : 1 x 18650 Battery (Not Included) 2 Microphone Battery s: 2 x of 18650 Battery (Not Included) PackageList 2 x Microphone 1 x Charging Cable 2 x Microphone Cover 1 x Receiver 2 x Anti Slip Ring 1 x Adaptor