This recorder has MP3 playback function. In addition to recording voices, you can also listen to music. his recorder has multiple modes for you to choose. You can switch between loop mode, sound mode, and repeat mode freely. In addition, there are five quality recordings available for this recorder, and you can easily choose what you need. HD Audio Quality: This digital audio recorder can record in 1536kbps MAV format, ensuring clear and high-quality sound. It is also equipped with a powerful DSP noise reduction chip that effectively reduces background noise for perfect audio capture. 1. which has strong drop resistance 2. ATJ2129 Professional voice recorder chip, high-definition recording 3. Timestamp, automatically name the recording file by date 4. Support audio recorder and MP3 5. Playback function: support loop recording, AB repeat function 6. Built-in hi-fi speaker, external direct sound 7. Support to view the remaining recording time 8. Built-in hi-fi speakers, external direct sound 9. Eye protection, LED backlight, color TFT LCD screen 10. Support voice-activated mode, 11. Detect low battery and save the recording file automatically 12. Support monitoring recording, MIC recording 13. Battery recording time: about 25 hours 14. Battery play time: about 15 hours (built-in rechargeable 230mAh lithium battery, battery charging time: about 1 hour) 15. USB 2.0 interface, easy to upload and download files Signal-to-noise ratio: Greater than 90dB Music format: MP3 format 32Kbps-128Kbps Recording format: WAV format 512kbps -1536kbps TF card: up to 128GB (not included) This recorder supports 128 GB SD card, not included (no flash memory, please insert the card before use) (No memory) Color: Black Material: plastic Package Contents: