multimedia slim keyboard, nice shape for the space-saving design, beautiful appearance of high-grade Keyboard Specification:Keyboard Size: 422 (L) × 116 (W) × 21 (H) mmKeyboard Weight: 415gKey Number: 105Multimedia keys: 13Key travel: 2.0mmkey strength: 50 + /-5gRated voltage / current: DC 5V / less than 100mAPlatform:Windows98SE / ME / 2000 / XP / VistaSafety Certification:FCC / CE