One Button Voice Activated Recording: Unlike other recorders on the market, we designed a unique "AVR" button to quickly start voice activated recording. When voice recording is enabled, the recorder starts recording when it detects sound and stops recording when the sound stops. Reduce empty rooms, save time and storage space. With advanced chip and noise suppression technology, you can enjoy high-definition crystal recording and playback. Large Capacity and Long Life: The mini recorder has large capacity recording time and long recording time, which can meet your daily needs. 16GB large built-in memory, the recording device can store over 192 hours of recordings/3000 songs and provide up to 185 hours of continuous recording, full battery and 30 days of standby time. Due to its large capacity, you can store different files without worrying about losing important files and recordings. Versatile magnetic recorder: The recorder with strong magnetic adsorption can be attached to any places such as under the bed, desk, car seat, etc., which makes recording discreet and easy. Password protection tool to protect your recording files. (installed on the computer). You can easily save and share your recordings to your computer or get files to your Android phone via OTG connection. EASY TO USE: The recorder is easy to use even for beginners, seniors and students. Backup recordings with one click, never miss any important information. With timestamps, you can find and manage files more easily. Dimensions: 1.1"L x 1.1"W x 0.3"H, and weighs 0.35 oz, the recorder fits easily in your purse, purse, or wallet so they can always use it to record the important sounds of your life. Widely used and technically supported: ideal for school studies, lectures, presentations, interviews for evidence. NOTE IMPORTANT: Please update your computer's date and time (timestamp set) before first use. If the recording (WAV format) cannot be played, please download/use a player that supports playback of WAV format files.