1. All metal CNC manufacturing, good shielding performance, free from surrounding interference 2. Using professional anti-noise microphone head, strong noise reduction, clearer sound quality 3. Cardioid pointing, with strong directivity, the pickup area is concentrated in front of the microphone 4. Built-in high-sensitivity pickup microphone, the pickup volume is louder, and the pickup distance is longer 5. External single two-way recording switch, recording is more convenient 6. External mobile phone camera recording switch, which can be used for recording on the camera mobile phone quickly 7. No need to charge, plug and play, simple operation 8. The product is small and convenient, easy to carry around 9. Equipped with windproof wool cover to effectively reduce wind noise and outdoor noise 10. Mini fixed shock-absorbing bracket, universal hot shoe base at the bottom, can be quickly installed on the camera for use 11. Frequency: 20-16000 Hz 12. Current consumption: =0.5mA 13. Operating voltage range: 1.8-3.3V 14. Designed for professional occasions such as photography, interviews, etc., can be adapted to common cameras, SLR cameras, mobile phone recording, and can be easily and quickly installed on cameras and mobile phones.