MSE NB LOG OPT WRLS M325 RED

With up to 18 months of battery life, it virtually eliminates the hassle of changing batteries. Smart sleep mode saves power while an indicator light eliminates surprises. Tiny, unifying nano-receiver stays in your laptop and gives you a reliable connection using advanced 2.4 GHz wireless technology with virtually no delays or dropouts.Optical - Wireless - Radio Frequency - Red - USB - Scroll Wheel