Parts description
1. Previous page
2. Push buttonFront Lighting, pressing for
a few seconds allows you to adjust the front
lighting
3. Menu
4. Navigation buttons: up: previous page,
down: next page, left: before, right: next.
5. OK: Confirm, Enter
6. Jack 3.5mm. input
7. Reset button
8. Mini USB port
9. Micro USB slot
10. Power button: Press for 5 seconds
to turn on or off the device