ZHAOYAO 10Pcs Titanium Coat Carbide 0.8mm-3.175mm End Mill Engraving Bits Speakers music playback time: up to

music playback time: up to 40 hours

Compass Waterproof Level IPX0 (Not Protected) I/O Interface Micro USB

ATtiny861A

0MP camera interpolated 13

1 * Adjustable potentiometer

ZHAOYAO 10Pcs Titanium Coat Carbide 0.8mm-3.175mm End Mill Engraving Bits Speakers music playback time: up toDescription: The cemented carbide material with good milling and cutting performance to ensure high work efficiency. Sharp cutting edge and slean and neat surface of milling, holes and plate edges without any glitches. The corn milling tip is light weight and exact size and with the storage box, it is very convenient and easy for you to carry with. It is very economical and practical with the 10pcs drill a set and it is suitable for drilling through