Feature 1 Noise Reduction: The recorder uses intelligent noise reduction technology to significantly reduce environmental noise and effectively restore the human voice. 2 Timestamp Function: Mini recorder built in time chip, and computer synchronization time after the recording file named in time, easy to manage the file. 3 Music Playback: MP3, WAV lossless music playback function, not only can record, but also play music, work and study, entertainment life more freely. 4 Voice Activated: Small voice recorder support voice activated, automatic recording when there is sound, no sound automatically pause, save storage space. 5 Premium Materials: This recording device is made of premium aluminum alloy and ABS materials, the body using oxidation technology, comfortable to the touch, durable.Item Type: Mini RecorderMaterial: Aluminum Alloy, ABSTransmission Interface: 3.5mmRecording Format: WAVRecording Distance: Approx. 5m/16.4ftBuilt in Polymer Lithium Battery: 110mAh Package List1 x Mini Recorder1 x USB Cable 1 x Earphone