Ultrasonic Cleaner: The cleaning machine produces small bubbles blasting, peeling off the stain on the contact lens in short time, causing no damage. 360 degree cleaning with strong power. Easy to Operate: One button operation, It is recommended washing the contact lens 3 minutes each time, 3 times a week. Portable: Lightweight and protable, wear-resistant, smooth and easy to clean, you can carry with it into your backpack, pocket, handbag on the go. Power Supply: 2 ways to use this cleaner, AAA battery or USB cable. Please note that it cannot be charged during use. Application: Suitable for families, travel, work, business trips and other occasions, also a great gift choice to your friends who wear contact lens. Specification: Material: ABS Power Supply: AAA Battery (Not included) or USB Cable Cleaning Time: 3 Minutes Size Chart: 82.5x45.2x58.2mm/3.25x1.78x2.29inch Package Includes: 1 Piece Contact Lens Cleaner Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!