iSonic Ultrasonic Cleaner offers best performance and price combination. It cleans jewellery, watches, eyeglasses, sunglasses, and many other personal items thoroughly. It cleans deep inside difficult to reach places such as settings, narrow crevices and small holes. It brings sparkles and luster back to your diamond, other jewellery, watches, and makes eyeglasses crystal clear. D2840 has wider and deeper tank size to accommodate extra large fashion sunglasses. Digital timer with 5 settings: 180, 280, 380, 480 and 90 seconds. On/Off switch to turn it on or off anytime. Pop open lid. Blue LED light. Polished stainless steel tank for easy cleaning and maintenance. 1. 6 Pt / 0. 75 L tank capacity. Tank size (oval) 6. 5"x3. 9"x2. 2" / 16. 6x10. 0x5. 5 cm. Unit size 8. 7"x6. 0"x5. 7" / 22. 2x15. 3x14. 5 cm. Power 35 W, 110 V. Pop-open lid. Blue LED light. Accessories included: plastic basket, watch stand. Gray/silver colours with chrome plated trim. Work best with iSonic ultrasonic cleaning solution concentrate CSGJ01. A 8OZ bottle is included. Only a capful is needed for a tank of water. To remove silver tarnish, use iSonic ultrasonic silver tarnish remover CSST01. Water or general jewelry solutions will not remove tarnish. Unauthorized dealer's products are not approved by iSonic and are infringing on iSonic's registered trademark. Buying from unauthorized dealers voids the automatically.