1. Wireless handheld microphone with karaoke voice effect, plug and play design, wide frequency range, reduced interference, delivers clear sound for effortless vocal performance. 2. Features electronic circuit control to capture rich, full audio from directly in front of the microphone. 3. Ideal for various occasions including karaoke, live performances, conferences, churches, schools, auditoriums, and parties. 4. USB receiver compatible with a wide range of devices. Equipped with USB and microphone interfaces for easy connection and use. 5. Stable wireless signal with long-distance reception up to 50 meters (in open space without strong interference), low noise, strong anti-interference capability. High compatibility with equipment featuring 3.5mm or 6.35mm microphone inputs. Name: Wireless Microphone Polar Pattern: Cardioid Battery Life: 3-6 hours Signal-to-Noise Ratio: 75dB Frequency Response Range: 60Hz - 15kHz Color: Black Material: Plastic Package Contents: 2 x Wireless Microphones 1 x Audio Cable 1 x USB Receiver 1 x Adapter Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting reflections and display settings may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.