[Easy to use] Press "On" to start recording, press "Off" to stop and save the recording. In order to reduce the noise-free recording time and make full use of the memory, please press the "Vor" button to activate car recording. (Then the device will record 45 decibels of noise.)[Powerful magnetic stand] With the help of powerful built-in magnet, the device can be attached to any place or hidden, making the application very flexible. Thanks to the dust-proof and splash-proof housing (IP67), the recorder can also be used outdoors. It can record at a distance of up to 20 m.High-capacity rechargeable battery: This mini recorder is equipped with a 3200 mAh battery and has a maximum standby time of 365 days. The longest recording time is 457 hours (equivalent to 19 days) on a single charge, and the recording capacity is 192 hours. The time to fully charge the device is only 6 hours.[Multi-function recorder] Connect the recorder, synchronize the time, and manage the recording files. It can be played directly from the headset and the computer. After connecting the recorder to the computer, you can synchronize, listen to the recording, delete or copy the recording. Thanks to the PCM noise reduction function, enjoy clear playback. It is very suitable for school study, conferences, lectures, interviews to obtain evidence.