Features: Two functional heads, polishing & orthodontics The head can be rotated 360° and is detachable. Compatible with most polishing heads on the market; Maximum speed 3000rmp, minimum 500rmp; Can be converted to forward mode or reverse mode; Wireless,convenient operation. Charging interface Type-C; https://www.dentalsalemall.com/Dental-Electric-Wireless-IPR-System-Orthodontic--Polishing-2-in-1-Motor-3435.html