Dimensions: 54 x 34 x 7 mm Weight: 21 Grams Sampling Rate: 48KHZ Recording Audio Format: WAV/192kbps Music Playback Format: WMA/WAV/MP3/OGG Noise-signal ratio: 80db USB Interface: USB 2.0 High Speed Recording Time: 24 Hours Battery Playing Time: 24 Hours Working Temperature Range: -5 Degrees – 40 Degrees