Special Features: IP65 rated medical keyboard Antimicrobial additive 2.4G wireless connection Easy to clean and disinfect Specifications: Number of Keys: 5 Scanning: optical detection +800DPI resolution Switching cycles: approx. 2 mill. (per key) Protection level: IP65 Housing Material: silicone Interfaces: 2.4G wireless connection Operating temperature:-30℃ ~+70℃ Storage temperature: -40℃ ~ +80 ℃ Dimensions: 115(L) x 61.5(W) x 42(T)mm Weight: approx 106g Certification: CE, RoHs