• 2.4GHz RF wireless technology at distances up to 30ft• Built-in trackball with universal scroll feature• Ergonomic design encourages natural positioning of hand, wrist & forearm• Integrated sloped palm rest relieves joint pain, back pain & spinal discomfort• Quiet membrane keys switches provide better tactile response & quieter typing experience• Multimedia & Windows(R) hotkeys UPC : 783750005517 Shipping Dimensions : 21.50in X 10.20in X 2.10in Estimated Shipping Weight : 2.7743
