1. All metal CNC manufacturing, good shielding performance, free from surrounding interference2. Using professional anti-noise microphone head, strong noise reduction, clearer sound quality3. Cardioid pointing, with strong directivity, the pickup area is concentrated in front of the microphone4. Built-in high-sensitivity pickup microphone, the pickup volume is louder, and the pickup distance is longer5. External single/two-way recording switch, recording is more convenient6. External mobile phone/camera recording switch, which can be used for recording on the camera/mobile phone quickly7. No need to charge, plug and play, simple operation8. The product is small and convenient, easy to carry around9. Equipped with windproof wool cover to effectively reduce wind noise and outdoor noise10. Mini fixed shock-absorbing bracket, universal hot shoe base at the bottom, can be quickly installed on the camera for use11. Frequency: 20-16000 Hz12. Current consumption: =0.5mA13. Operating voltage range: 1.8-3.3V14. 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.Specification: Package Weight One Package Weight 0.11kgs / 0.24lb One Package Size 13cm * 10cm * 7cm / 5.12inch * 3.94inch * 2.76inch Qty per Carton 140 Carton Weight 16.20kgs / 35.71lb Carton Size 51cm * 51cm * 46cm / 20.08inch * 20.08inch * 18.11inch Loading Container 20GP: 222 cartons * 140 pcs = 31080 pcs 40HQ: 517 cartons * 140 pcs = 72380 pcs