Feature: 1. Mobile Phone Compatibility: Connect the voice recorder to your phone via an OTG adapter to playback and manage recording files on the go. 2. Long Battery Life: Equipped with a high energy polymer li ion battery and intelligent energy saving system, this compact recorder provides long term recording functionality. 3. 2 Recording Modes: Switch between voice activated recording and normal recording modes. Voice activated mode records only when sound is detected, saving storage space and improving efficiency. 4. Small and Portable: The voice recorder is designed to be compact and portable, allowing you to easily carry it with you anywhere you go, unobtrusive design will not draw any unwanted attention. 5. Noise Reduction: The recorder is equipped with high definition noise reduction technology, which can effectively filters out background noise and provide you with crisp and clear recordings. Specification: Item Type: Voice Recorder Material: ABS Built in Polymer Li ion Battery: 220mAh Recording Format: WAV Playback Format: MP3, WMA, WAV. Package List: 1 x Voice Recorder1 x Charging Cable 1 x Earphone 1 x User Manual