1、Fully Sealed Design: Silicone keyboard is waterproof, dust proof, oil proof, acid proof, and can be used in any harsh environment. 2、Lightweight Portable: Soft silicone keyboard can be crimped and stuffed into the bag at will, which is convenient to carry and save space. 3、Various Colors: Foldable silicone keyboard has various colors, six colors can be selected, and the key text will never fall off and will not fade. 4、Mute Button: The 85 keys silicone keyboard is silent when tapping, which can achieve complete mute without affecting family members' sleep. 5、Soft Comfortable: Rollable keyboard has good resilience, soft and comfortable touch, comfortable hand feeling, and protects fingers from injury. 1 x Silicone Keyboard Item Type: Silicone KeyboardMaterial: SiliconeNumber of Keys: 85 KeysFunction: Waterproof, Dustproof and SilentInterface: USBTemperature Range: Temperature Difference Between -40-80℃