• Secure 2.4 GHz enhanced frequency prevents signal overlap and interception. • Advanced laser technology responds quickly to micro movements. • Intelligent power management and ultra-efficient sensors provide up to a 9 month battery life, based on an average uage of 8 hours/day, 5 days/week. • One-touch multimedia keys instantly launch calculator, email and more. • 6 programmable mouse buttons reduce repetitive tasks and speed you through your work. • Tilt-scroll wheel for 4-way directional scrolling side to side and up and down. • Soft rubber mouse grips and cushioned keyboard wrist rest gives you all day comfort. • Wireless technology lets you position both keyboard and mouse in their optimal position – up to 30 foot range. • Case dimensions: 21.65"L x 14.1"W x 10.55"H.