Features 1. Built-in 250mAh battery, use time 25h. 2. One-key recording, with LCD recording instructions, easy to operate. 3. 6 recording modes, 3D sound effects, support voice activation function (VAR). 4. Support loop/AB repeat/pause/delete. Equipped with a telephone adapter to support telephone call recording. 5. Pocket size, MP3 music player. 6. Built-in microphone and speaker, external microphone and earphone can be connected. Specifications 1. Recording format: WAV format 2. Recording power: 0.8mA-12mA 3. Recording sampling rate: 8KHz/16KHz/48KHz 4. Recording bit rate: WAV (32/128/192/384Kbps) 5. Music playback format: MP3, WAV 6. Headphone jack: 3.5pie stereo jack 7. Headphone output: (L) 9mW+(R) 9mW (32Ohm) max 8. USB interface: MICRO-Mike 5P/DC5V-300MAh 9. Storage: Embedded Flash 10. Built-in speaker output: 800mW