Mini 4GB USB Disk Pen Drive Digital Audio Voice Recorder MP3 Player 3 in 1 silver Recording Format: MP3 / WAV Recording Media: 4GB Specifications: Color: Black, Pink, Blue, SilverSize: 64mm x 22mm x 9mmFlash Memory Capacity: 4GBRecording format: WAVRecording distance: 1-35m Dimensions: 64mm x 22mm x 9mm Weight: 93g Package Contents: 1 x USB Voice Recorder Color: Silver