Product DescriptionMaterial: Metal+Glass Size: 85mm36mm14mm Memory: 8GB Display: 1.0 inch Recording Mode: Continuous Recording Recording Format: WAV Format Recording Power: 0.8mA2mA Recording Sampling Rate: 8KHz/16KHz/48KHz Recording Bit Rate: WAV (32/128/192/384Kbps) Music Playback Format: MP3, WAVM Memory Card Type: Expansion Card Not Supported Display: Monochrome Display Transmission Interface: USB 2.0 Recording Distance: 10m-20m Power Supply: Built-in Lithium Battery : 220MAh Battery life: 18 hours recording, 5 hours playing (plug in headphones) Color: black, iron gray, silver Quantity: 1 Piece Package Contents: 1*Recording Pen 1. Multi-function: The digital recorder provides MP3 playback, one-key recording, telephone recording function, high recording quality, automatic storage, time setting. 2. HIGH QUALITY SOUND EASY TO USE: This recording microphone has higher sensitivity, you can enjoy better sound quality. Simple three-button record, save and play, 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. High-fidelity recording: The recorder adopts HQ mode recording microphone, intelligent dynamic noise reduction, 360-degree all-round recording, ensuring excellent sound quality and recording quality. External speakers reproduce your recordings with exceptional fidelity. 5. Wide range of applications: The recorder is perfect for colleges, lectures, discussions, interviews, group presentations and podcasts. Especially suitable for primary school students, students, teachers, professors, business people and other groups.