1. Key shape: Mini-recorder with UV process, simple black appearance, can be used as a key, from the appearance is not easy to find. 2. Multi-function: Mini-voice recorder with one-button recording, with local deletion function, designed with LED indicator light, easy to use. 3. Voice activation: ADPCM recording 192Kbit, optional voice control recording 50DB, automatic divided recording, loop-overlay recording. 4. Playback format: This small recorder supports MP3, WMA, WAV playback formats and supports fast playback forward and backward. 5. Time name: Pocket recorder with time stamp, recording file name named after time, convenient for you to organize and manage files. Product type: Mini-recorder Material: Zinc alloy Recording format: WAV Playback format: MP3, WMA, WAV Built-in polymer lithium battery: 140mAh The package includes: 1 x mini-recorder 1 x user manual 1 x charging cable 1 x earbuds Our customers are our top priority. If you encounter any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.