Connect up to six compatible wireless devices using a single USB port, storable within the mouse during travel. The full-size keyboard's low-profile, whisper-quiet keys make typing efficient and comfortable. The mouse's gentle curve makes it comfortable for all-day use. Device Type: Keyboard and mouse set - wireless Interface: 2.4 GHz Wireless Receiver: USB wireless receiver Input Device: Keyboard Hot Keys Qty: 12 Hot Keys Function: Internet browsing, multimedia, e-mail, volume, play/pause Pointing Device: Mouse Features: Wireless Features: Wireless Microsoft Certification: Compatible with Windows 7 Manufacturer Warranty: 3 years warranty Device Type: Keyboard and mouse set - wireless Interface: 2.4 GHz Wireless Receiver: USB wireless receiver Dimensions (WxDxH) / Weight: Keyboard: 17.6 in x 7.2 in x 0.8 in / 20.1 oz Mouse: 2.4 in x 3.9 in x 1.5 in / 1.8 oz Type: Keyboard Hot Keys Qty: 12 Hot Keys Function: Internet browsing, multimedia, e-mail, volume, play/pause Features: Silent keys technology, low profile keys, 12 programmable keys Type: Mouse Pointing Device Features: Wireless Included Accessories: Logitech Unifying receiver, USB extender Compliant Standards: Plug and Play Compatible with Windows 7: Compatible with Windows 7 software and devices carry Microsoft’s assurance that these products have passed tests for compatibility and reliability with 32-bit and 64-bit Windows 7. OS Required: Microsoft Windows Vista / XP / 7 / 8 Type: AA type Installed Qty: 3 Service & Support: Limited warranty - 3 years