Features 

1. bluetooth V5.0

2. Support dual digital tube display, real time detection and display of battery voltage

3. Support orange USB interface(QC18W),Type-C interface(PD20W) 

4. Support Colorful atmosphere LED

5. Support the voice assistant

6. Support TF card,WAV/PLAC

7. Support music, volume, point power off memory function

8. Support bluetooth automatic loopback

9. Support A2DP, AVRCP, HFP, HSP

10. Support private answer switch

11. Support key on / off, retain charging function

12. Supports input over-voltage protection, output over-current protection, output short-circuit protection and over temperature protection