1. Detachable handpiece with light, autoclavable. 2. Automatic frequency tracking.
a:3:{i:0;a:2:{s:4:"name";s:10:"Operation:";s:3:"val";s:10:"ultrasonic";}i:1;a:2:{s:4:"name";s:22:"Other characteristics:";s:3:"val";s:14:"with LED light";}i:2;a:2:{s:4:"name";s:14:"Configuration:";s:3:"val";s:8:"recessed";}}