[One-key voice recording] One-key recording, allowing you to quickly start recording. Push the switch to the "VOR" (middle) position to start active voice recording. When a sound (more than 50dbs) is detected, it will record, otherwise it will stop recording to ensure full use of memory. Push the switch to the "on" position to start recording normally. Push to the "off" position to save the recording file.Strong Magnetic RecorderThe strong magnetic suction mini recorder can be attached to any place to make recording secret and easy. And the password protection setting will protect your recording files (there are instructions for setting on the computer). This small recording device is very suitable for lectures, conferences, interviews, classrooms, evidence collection, etc.[Long battery time] This small recording device is equipped with a 2000mAh rechargeable battery, which can stand by for up to 500 days or 300 hours of continuous recording time. The intelligent recording function enables the recorder to save recording files for 5 hours at a time. Full charge time: 5-6 hours.[Setting before use] Connect this recording device to your computer to synchronize the time before recording. Support computer (WAV format) & headset (MP3 format) playback. Using high-definition noise reduction chip to minimize the noise, you will get high-fidelity recording, as long as your ears can hear, you can record the sound. It can be used as a professional digital recorder or MP3 player.[Multi-function] This small digital audio recorder supports "recording and charging", "recording and listening", and "long-distance recording"-[everything you hear will be recorded].