How to Use: Turn on the switch to use Specification: Item Type: Voice Activated Recorder Material: ABS Recording Method: Record when Power On, Save when Power Off Recording Format: WAV Playback Format: MP3 WMA WAV Built in Polymer Lithium Battery: 140mAh Package List: 1 x Voice Activated Recorder 1 x Charging Cable 1 x Headphone 1 x Manual 1 x Adapter Cable - Voice Control Recording Device: PCM recording 1536Kbit, optional voice control recording 50dB, automatic division recording, loop overwriting recording. - One Key Recording: Voice Activated Recorder can record with one key, start recording, shut down and save, with delete function, play LED indicator. - Multifunctional: Intelligent HD Voice Activated Recorder supports MP3, WMA, WAV playback, supports fast forward and backward playback, with timestamp, and the recording file name is named after the time. - Long Battery Life: Noise reduction voice recorder can record continuously for 30 hours, standby for 30 days, storage recording more than 90 hours. - ABS Material: This smart HD voice activated recorder adopts UV process, gray color, high concealment, classic , with lanyard hole, easy to carry.