1. Wireless handheld microphone, karaoke vocal, plug and play, frequency range, less interference, simple and perfect for showcasing your voice. 2. Using electronic circuit control, it can capture rich and full sound directly in front of the microphone. 3. Suitable for all events, such as karaoke, live performances, conferences, churches, schools, auditoriums, parties, etc. 4. The USB receiver supports a variety of devices, and the device supports a wide range of applications. The device has a USB interface and a microphone interface, which can be connected and used. 5. Stable long-distance signal reception, no noise at constant frequency within 50m, strong anti-interference ability, wireless receiver with a reception range of 50m (no strong interference). Strong compatibility, suitable for equipment on various occasions, equipment with 3.5mm/6.35mm microphone interface can be used. Name: Wireless Microphone Directivity: Cardioid directivity Battery life: 3-6 hours Signal-to-noise ratio: 75dB Frequency response: 60Hz-15KHz Color: Black Material: Plastic Package Contents: 2 x Wireless Microphone 1 x Audio Cable 1 x USB Receiver 1 x Adapter Only the above package contents, other products are not included.