DS310 is a miniaturized commercial model with a powerful 50W stack transducer with much higher power intensity than most ultrasonic cleaners. 110V 55W, 40, 000Hz. It is the smallest commercial grade ultrasonic cleaner with a stack transducer in the world. It has many good features: a convenient power switch, a detachable power cord, a cooling fan built in, touch-sensing controls. Black plus rose gold color scheme is very attractive for jewelry and optical stores, and homes. Multiple configurations are available: 1. DS310 (black) with an integrated beaker holder, a 250 ml (1/2 pint) stainless steel beaker, a strainer attached to the beaker cover. Small items such as jewelry, dentures, aligners, retainers can cleaned in the stainless steel beaker. Larger items such as eyeglasses and sunglasses, airbrushes etc. can be cleaned in the main tank. 2. DS310B (black) for with a regular lid. It can be used to clean jewelry, eyeglasses, sunglasses, airbrushes in the main tank. 3. DS310C (black) with a makeup brush holder to clean makeup brushes in the main cleaning tank. It can also be used to clean jewelry, eyeglasses, sunglasses, airbrushes etc. in the main tank. Using a beaker to clean and to change water makes it much easier to handle compared to do it in the main cleaning tank of the ultrasonic cleaner. The unit size is as small as a personal model but it has commercial model's power and features. These are the key advantages of this model.