Item Type: Voice RecorderMaterial: ABSCharging Time: About 1HPicture Format: JPGResolution: 1920x1080Lens Accuracy: F/NUMBER 2.25Video Format: AVIBuilt in Polymer Lithium Battery: 140mAhPackage List1 x Voice Recorder 1 x Instruction Manual The capacity is 4g/0.1oz, the actual capacity may be less, about 95 percent, which is normal, and so are other capacities. 1Auto Save: When the system detects low battery power, mini digital voice recorder will automatically save the file and then turn off the power. 2Clear Sound: Voice recorder can still adapt to and deal with environmental noise in a noisy environment, while improving the sound part of the conversation to make the recording clearer. 3High Security: Mini digital voice recorder When the camera records, there is no light or sound, and the camera and recording are not visible. 4Easy Charging: Voice recorder supports connection to charging treasure, computer charger, car USB port, recording during charging, recording is not limited by battery. 5Premium Material: Mini digital voice recorder is made of premium ABS material, wear resistant and durable, light and skin friendly, bringing a more comfortable experience.