ZD70 Smart HD Noise Reduction Voice Control Recording Pen

1. Display: 1.44 color screen
2. Speaker: 23 speakers
3. Headphone interface: 3.5pie stereo jack
4. Distortion rate: about 70dB
5. Signal-to-noise ratio: 0.05%
6. Recording format: WAV format
7. Recording power: 8-20mA
8. Recording acquisition rate: 16-48KHZ
9. Recording bit rate: MP3, WAV
10. USB interface: Type-C/DC5V-1A
11. TF card capacity: 4GB-128GB (not included in this product)
12. Battery capacity: 500mAh
13. Recording save: One file is saved every 1 hour by default
14. Continuous working time: about 50 hours of recording, about 50 hours of headphone playback
15. Audio playback time: about 10 hours of continuous external playback (determined by the volume)
16. Support system: Windows XP&Vista/2K/ME/98 (need to install driver)/Mac OS/Windows 7/ Windows10
17. Omnidirectional, stereo directional recording
18. 1536Kbps, high-definition lossless sound quality