1. Wireless lavalier microphone, widely used in sound cards, computers, cameras, mobile phones, audio equipment, suitable for live broadcast, interviews, video recording, singing and other scenes 2. Built-in DSP chip, active noise reduction, better restore the original sound 3. 2.4G wireless technology, automatic pairing when powered on, simple operation 4. Adopt high-quality microphone core, omnidirectional sound reception, strong anti-interference ability, effective identification of original sound to meet the recording needs of noisy environment 5. High-performance wireless microphone, 20 meters wireless receiving distance, stable signal 6. Can record video while charging, live broadcast can be used continuously 7. The microphone has a built-in 80 mAh battery, up to 5 hours of battery life Parameters: 1. Directivity: 2.4G wireless omnidirectional 2. Pickup distance: 3m electronic capacitor head 3. Sensitivity: -45db 4. Signal-to-noise ratio: less than 75db 5. Frequency response: 20HZ-20KHz 6. Sampling rate: 48K 24BIT 7. Interface type: TYPE-C 8. Microphone: built-in 9. Lithium battery: 80 mAh microphone, 120 mAh receiver, 3.5MM interface Packing list: --Set 1: 1 x microphone + 1 x receiver + 1 x 4-pole to 3-pole adapter + Type-C charging cable + zipper storage bag --Set 2: 1 x microphone + 1 x receiver + 1 x 4-pole to 3-pole adapter + 1 x U-shaped adapter + Type-C charging cable + zipper storage bag --Set 3: 1 x microphone + 1 x receiver + 1 x 4-pole to 3-pole adapter + 1 x U-shaped adapter + 1 x 3.5mm to 6.35mm adapter + Type-C charging cable + zipper storage bag --Set 4: 2 x microphones + 1 x receiver r + 1 x 4-pole to 3-pole adapter + Type-C charging cable + zipper storage bag