Long recording time, rechargeable battery, maximum standby time of 365 days, super long battery recording life of 350 hours (4GB large memory). The charging time is 6 hours, and it has a smart indicator light to show the fully charged status. PCM noise reduction makes recording clearer, IP67 waterproof design, 50 feet long distance recording, it is a practical device for your daily life. Magnetic adsorption With magnetic adsorption function, this recorder can be adsorbed on any steel objects, such as cars, chairs, tables, windows, beds, etc. When the recorder starts recording, there are no lights or sounds. Surrounding 360° recording angle can help you get important recordings more easily. Super suitable for lectures, presentations, classes, meetings, interviews, obtaining evidence and more. Easy to use Just press the "On" button to start recording, press the "Off" button to save the recording, and then turn off the recorder. You can listen to the recording through headphones or your computer. After connecting the recorder to your computer, you can synchronize the time and set the timestamp function, making it easier for you to find recording files. You can delete, play or copy important recording files to other places for backup at will.