1. Microphone: An external microphone can transmit sound within 10 meters. 2. 1080P: HD 1080P camera and true color images. 3. Shakeable: up, down, left, and right can be rotated, and the angle can be adjusted as needed. 4. Sound quality lens: imported optical lens, high precision, no distortion pictures. 5. Focus: manual focus adjustment, you can freely rotate the lens to adjust.