Features dual-frequency technology, so it accepts 25K and 30K inserts and automatically detects inserts to quickly integrate with existing equipment. Auto-gain control maintains power throughout procedure. Hands-free, on-demand Boost mode activated by foot pedal to help provide additional force when removing difficult calculus. Cruise control allows user to ‘‘select power and go’’ without needing to continuously press the foot pedal. One-button purge mode for automatic cleaning of line. Compatible with other branded inserts. 1-year warranty.Dimensions: 5.9"L x 4.9"W x 3.3"HWeight: 1.3 Lb. scaling unit; 1.7 Lb. external power supply