Product Material: metal + glass Size: 85mm36mm14mm Memory: 8GB Display: 1.0 inch Recording mode: continuous recording Recording format: WAV format Recording power: 0.8mA-12mA Recording sampling rate: 8KHz/16KHz/48KHz Recording bit rate: WAV (32/128/192/384Kbps) Music playback format: MP3, WAV Memory card type: does not support expansion cards Display: Monochrome display Transmission interface: USB 2.0 Recording distance: 10 meters-20 meters Power supply mode: built-in lithium battery Battery capacity: 220MAh Battery life: 18 hours of recording, 5 hours of playback (plug in headphones to listen) Color: black, iron gray, silver Quantity: 1 piece Package content: 1*recording pen (with battery) 1. Multifunction: The digital voice recorder offers many functions such as MP3 player, one-click recording, telephone recording function, high recording quality, automatic storage, time setting. 2. High quality sound Easy to use: This recorder microphone has higher sensitivity and you can enjoy better sound quality. Easy three button record, save and playback, easy to use. 3. 8G memory, longer recording time: The recorder can record up to 560 hours (32kpbs recording quality); built-in rechargeable battery; When fully charged, you can continuously record 18 hours of recording and 5 hours of playback (plug in headphones). 4. Recordings with high fidelity: The voice recorder has microphones that record in HQ mode and intelligent dynamic noise reduction, and ensures excellent sound and recording quality with sound recordings in a radius of 360 degrees. External speakers reproduce your recordings with particularly high fidelity. 5. Wide application: The tape recorder is ideal for universities, lectures, discussions, interviews, group presentations and podcasts. It is especially suitable for schoolchildren, students, teachers, professors, business people and other groups.