Features 1.Multi Application: Mini recorder is made of premium CNC aluminum alloy with black appearance, suitable for class, meeting, interview, etc. 2.Easy To Use: Digital voice recorder with one key recording, with delete function, playback LED light indication. Support continuous 15 hours recording, standby for 30 days. 3.Voice Activated: Small recorder, ADPCM recording 192Kbit, optional voice activated recording 50DB, automatic split recording, loop overlay recording. 4.Built In Timestamp: This voice recorder with timestamp, the recording file is named after time, easy to find. It is also convenient to manage recording files. 5.Support Playback Format: Small recording device, support for MP3, WMA, WAV format playback, and support fast forward and backward playback. specificationItem Type: Mini Voice Recorder Material: Aluminum Alloy Color: Black Frequency Range: 20Hz-20KHz SNR: 90dB Support System: For Windows 98 ME 2K XP 7 8 10, for Linux 6.2, for OS X 10 Built in Lithium Polymer Battery: 90mAh PackageList1 x MiniVoiceRecorder 1 x Earphone 1 x Charging Cable 1 x Instruction Manual