HP Wireless Optical Mouse - Dandelion Floral High-Tech travel design: Sleek finish and contoured edges give this mouse a distinctive style. Compact size makes it easy to take with your laptop--around the house or on the road. Ultra-Comfortable: Symmetric sculpted design for right or left handed comfort. The rubber material on both sides gives you enhanced control, soft touch and feel. Wireless freedom: Advanced 2.4 GHz wireless technology for less interference and longer range of operation means no wires to tangle or limit movement. The micro-receiver is so small you can leave it plugged into your notebook--no more broken or lost receivers. Laser Performance: High-precision laser sensor provides precise, smooth and responsive tracking. Travel with confidence to leave your mouse pad behind, the laser tracking works on more surfaces than a standard optical mouse. No ball and no cleaning. Energy efficient components: single AA battery (not included) lasts up to 7 months