This silicone keyboard is sealed to keep the elements out in acid, alkaline, or dusty environments. Because it's completely washable with soap & water, alcohol & medical disinfectants, it's a great choice for clinical or laboratory environments where sanitary conditions are vital. The flexible keyboard can be rolled up & stored in laptop cases, making it an ideal accessory for notebook computers. Wired / Wireless: Wired; Connector / Port / Interface: PS / 2; USB; Keyboard Design: Roll-up; Ergonomic: No.