1. One-key recording, easy to operate 2. Support PCM audio codec 3. Intelligent voice-activated recording, effectively saving memory space and battery capacity 4. Built-in DSP noise reduction chip, which can filter noise sources in different environments 5. The recording can not only be listened to in real time, but also supports MP3 function, and supports multi-format playback such as MP3/WMA/APE/FLA/OGG/AAC/AAX/M4A 6. Built-in time chip, with automatic time synchronization function, recording files are named after time 7. Connect the OTG adapter to play and manage the recording files on the phone (only supports Android phones) 8. Built-in strong attraction magnet, which can be attached to the blackboard 9. Battery capacity: 3200mah 10. Recording time: about 500 hours 11. Standby time: about 365 days 12. Charging time: 6 hours 13. Dimensions: 72x27x22.94mm
