Noise Reduction: The recorder uses intelligent noise reduction technology to significantly reduce ambient noise and effectively restore the human voice. Timestamp Function: Mini recorder built-in time chip and computer synchronization time after the recording file is named in time, easy to manage the file. Music Playback: MP3, WAV lossless music playback function, can not only record, but also play music, work and study, entertainment life is freer. Voice Activated: Small voice recorder supports voice activation, automatic recording when there is sound, no sound automatically pauses, saving storage space. Premium Material: This recording device is made of premium aluminum alloy and ABS material, the body uses oxidation technology, comfortable to touch, durable. Item Type: Mini Recorder Material: Aluminum Alloy, ABS Transmission Interface: 3.5mm Recording Format: WAV Recording Distance: Approx. 5m/16.4ft Built-in polymer lithium battery: 110mAh 1 x Mini Recorder 1 x USB Cable 1 x Headphones