1. Adopts dual-core high-speed CPU architecture of ARM9+DSP, supporting decoding of multiple audio formats including MP3, WMA, WAV, AAC, OGG, lossless APE and FLAC.

2. Supports high-bit-rate MP3 encoding recording with clear and authentic sound pickup.

3. Equipped with OTG function for read/write access to USB flash drive and SD card; music and recorded files can be stored on USB storage or SD card.

4. Ultra-long recording duration, continuous recording available for more than 24 hours.

5. Two emergency short-circuit signal inputs to trigger playback of pre-customized fire alarm voice or background music.

6. Four customizable fire shortcut keys for one-touch triggering of preset emergency alert signals, voice prompts or alarm music.

1. Adopts dual-core high-speed CPU architecture of ARM9+DSP, supporting decoding of multiple audio formats including MP3, WMA, WAV, AAC, OGG, lossless APE and FLAC.

2. Supports high-bit-rate MP3 encoding recording with clear and authentic sound pickup.

3. Equipped with OTG function for read/write access to USB flash drive and SD card; music and recorded files can be stored on USB storage or SD card.

4. Ultra-long recording duration, continuous recording available for more than 24 hours.

5. Two emergency short-circuit signal inputs to trigger playback of pre-customized fire alarm voice or background music.

6. Four customizable fire shortcut keys for one-touch triggering of preset emergency alert signals, voice prompts or alarm music.