Logitech M325 Wireless Optical Mouse - India Jewel A precision wheel for the web - Micro-precise scrolling is designed for how you use the web Go for up to 18 months without a battery change - Power indicator light eliminates surprises Convenient Logitech Unifying receiver - Wireless receiver is so tiny it can stay safe and secure in your laptop Robust wireless connection - Logitech Advanced 2.4 GHz wireless gives you the reliability of a corded connection Logitech Advanced Optical Tracking - From surfing the web to navigating Facebook, everything you do on your laptop is easier with precision pointing, clicking, and dragging.