Powerful cleaning with UV sterilization and vibration, with 5, 10, and 15-minute timers. Battery specifications: I tested it, and the vibration was intense. Please rest assured that no water was added. - Features: With UV sterilization function - Cleaning time: 5 minutes, 10 minutes, 15 minutes settings - Design: Compact and easy to carry - Operation buttons: Power button and timer setting button - Uses: Ideal for cleaning glasses and small items Requires 3 AAA batteries, not included. Thank you for viewing.