Extended Number Keypad for Data Entry - Black for Pc Laptop Notebook Retractable USB cable for convenient carrying. Communication: USB1.1 &amp; USB+PS/2. Waterproof, washable, made of silicone. Key layout: 32 keys. Protection level: IP67. Approvals: CE, FCC, RoHS, WEEE &amp; PAHs. Dimensions: 6.30(L) x 5.31(H) x 0.31(T) inch. Weight (LB): 0.37