1. [One Key Operation] You can quickly turn on the recording function with one key without complicated operations or waiting, which is very convenient and fast. 2. [Voice Activated Recording] Start recording when there is sound, pause when there is no sound, save storage space and playback time, and avoid taking up too much memory. 3. [Noise Cancelling Technology] This pendant voice recorder can filter background noise and enhance human voice, so as to achieve stereo recording and give you a listening pleasure. 4. [OTG Function] You can play and manage files on mobile phones and computers through OTG connection without tedious conversion (only for Android phone connection is supported). 5. [Small And Portable] Car shaped design, small and light, it can be put in your pocket or hung anywhere for recording, suitable for meeting minutes, lectures, interviews, etc. Specification: Item Type: Voice Recorder Material: ABS Function: Support One Key Recording, Voice Activated Recording, OTG Connection, etc Recording Format: WAV Playback Format: WAV, WMA, MP3 Battery Type: Built in 100mAh Lithium Ion Battery Application Scenarios: Used for Lectures, Conferences, Interview Records, etc How to Use: Toggle the switch key to start and record. packing list: 1 x Voice Recorder 1 x Earphone 1 x Data Cable 1 x English Manual [Voice Activated Recording] Start recording when there is sound, pause when there is no sound, save storage space and playback time, and avoid taking up too much memory. [OTG Function] You can play and manage files on mobile phones and computers through OTG connection without tedious conversion (only for Android phone connection is supported). [One Key Operation] You can quickly turn on the recording function with one key without complicated operations or waiting, which is very convenient and fast. [Noise Cancelling Technology] This pendant voice recorder can filter background noise and enhance human voice, so as to achieve stereo recording and give you a listening pleasure. [Small And Portable] Car shaped design, small and light, it can be put in your pocket or hung anywhere for recording, suitable for meeting minutes, lectures, interviews, etc. [Voice Activated Recording] Start recording when there is sound, pause when there is no sound, save storage space and playback time, and avoid taking up too much memory. [OTG Function] You can play and manage files on mobile phones and computers through OTG connection without tedious conversion (only for Android phone connection is supported). [One Key Operation] You can quickly turn on the recording function with one key without complicated operations or waiting, which is very convenient and fast. [Noise Cancelling Technology] This pendant voice recorder can filter background noise and enhance human voice, so as to achieve stereo recording and give you a listening pleasure. [Small And Portable] Car shaped design, small and light, it can be put in your pocket or hung anywhere for recording, suitable for meeting minutes, lectures, interviews, etc.