Your audio files will be stored on the device as WAV files for easy playback with any media player.Multi-function: rechargeable mini digital recorder and MP3 player, telephone recorder, USB storage flash drive supporting WMA, ASF and WAV formats.Easy to use and worry-free: The handheld recorder is small enough to fit in almost any pocket, and you can easily switch between a digital recorder and an MP3 player. Very easy to use menu interface.Fashionable and durable: unique design and powerful built-in lithium battery, rechargeable and environmentally friendly, make this recorder stylish, durable, and sweat-proof. It is a perfect gift for students, writers, professionals and anyone who needs it Wide range of applications: It is an excellent recording device for recording lectures, meetings, business negotiations, medical advice, evidence collection, interviews, and hidden spy recordings.