Features: Digital voice recorder and music player with high quality sound.One-touch recording, high efficiency for class, interviews, meetings, lectures, etc.High grade built-in microphone, allows you to record detailed conversations.Built-in rechargeable lithium battery, offers up to 20hrs continuous recording (fully ).Supports 8GB 16GB 32GB memory card (not included). Small body, easy to carry and hide.Specifications:Recording Format: WAVMusic Format: WAVPlayback Formats: WAV, MP3Power Supply: Li-ion batteryRecording Time: 20 hours (fully )USB Port: USB 2.0Frequency Response: 20Hz-20KHzWorking Temperature: 0~40With Speakers: YesBalanced Out: YesCapacity: No capacity (supports 8GB 16GB 32GB TF Card)Compatible System: Windows XP, Window Vista, Windows 7, Windows 8Material: plasticcolour: blackPackage Contents:1 x Voice Recorder1 x Earphone1 x Charging Cable1 x English Manual (English)Only the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +- 1-3cm.