Feature: 1. Fully Sealed Design: Waterproof, dustproof, oilproof, can be used in any harsh environment and can be disinfected and cleaned in water. 2. Bright Color: Distinctive personality, unique surface treatment, so that the key text never falls off and does not fade. 3. Silent And Portable: No sound of knocking, can be completely silent, not afraid to affect the family sleep. Can be curled and stuffed into the bag at will, easy to carry, save space. 4. Soft And Comfortable: Good resilience, soft and comfortable to the touch, feel friendly, protect your fingers from harm. 5. High Performance: Special design and production process, so that the keyboard structure streamlined, without any metal gong nails, reliable and stable performance. Key life up to 15 million times, with a USB and PS / 2 interface conversion. Specification: Item Type: Silicone Keyboard Material: Silicone Number Of Keys: 107 Keys Function: Waterproof, Dustproof And Silent Interface: 2.4G Interface Device Adaptation Temperature Difference: -40℃-80℃ Keyboard Battery Specifications: 2 x AAA Batteries (Battery Not Included). Package List: 1 x Keyboard1 x USB Receiver