This ultrasonic cleaner will clean jewellery watches glasses coins and a lot lot more with no effort and really quickly there are two inserts which will easily clean your watches and jewellery etc the high frequency ultrasonic waves move the water which causes it to clean the surfaces technical details 600 ml cleaning tank 35 watt switches off automatically after 3 minutes exterior dimensions 225 x 145 x 140 mm interior dimensions 150 x 100 x 50 mm you will also receive