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 charged).  Supports 8GB/ 16GB/ 32GB memory card (not included).  Small body, easy to carry and hide.    Specifications:  Color: Gold  Material: Metal  Recording Format: WAV  Music Format: WAV  Playback Formats: WAV, MP3  Power Supply: Li-ion battery  Recording Time: 20 hours (fully charged)  USB Port: USB 2.0  Frequency Response: 20Hz-20KHz  Working Temperature: 0~40& 8451;  With Speakers: Yes  Balanced Out: Yes  Capacity: No capacity (supports 8GB/ 16GB/ 32GB TF Card)  Compatible System: Windows XP, Window Vista, Windows 7, Windows 8  Item Size: 7 * 1.8 * 1.1cm/ 2.7 * 0.7 * 0.4in  Item Weight: 34g/ 1.2oz    Note:  This digital voice recorder needs to work with a memory card (not included). Supports 8GB/ 16GB/ 32GB TF card.    Package List:  1 * Voice Recorder  1 * Earphone  1 * Charging Cable  1 * User's Manual (English)