1、No light or sound is emitted during recording/recording, silent recording and recording. 2、Good sound quality, good chip, in a noisy environment, while dealing with environmental noise, improve the voice part of the conversation and make the recording clearer. 3、Independent one‑key recording, the recording function adopts independent button design, when you need emergency recording, you can complete the recording operation with just one tap. 4、Using photosensitive lens, 1080P six glass lens, high‑definition lens, high hardness, not fragile, strong light transmittance, no halo and no light leakage, and 1080P high definition effect can be achieved. 5、Support to connect to power bank, computer, charger, car USB port while charging while recording, recording is not restricted by battery. 6、Automatically save when power off. When the system detects low battery, it will automatically save the file and then shut down to ensures that the video and audio data are not lost. Condition: 100% brand new Item type: Digital Recorder Material: ABS Color: black Weight: Approx. 105g Model: D7 Video format: AVI/M-JPGE Video resolution: 1920*1080*30fps Picture format: JPG Recording format: WAV Voltage: 3.7V Battery capacity: 140mAh Recording time: about 1.5 hours Recording time: about 1 hour Lens: 1080P high definition, 110° wide angle Photo/video mode: one-key recording, one-key recording, one-key photography Optional type: 8GB, 16GB, 64GB 1 x Recorder 1 x Instruction