Logitech® V270 cordless optical notebook mouse V270 Cordless Optical Notebook Mouse, Silver This mouse works without a receiver for the ultimate in hassle-free mobility. Instantly connects to notebooks enabled with Bluetooth® wireless technology, providing up to 30 ft. of cordless range. Power-saving sleep modes, a low-battery indicator light, and an on/off switch let you manage power wisely. A 1000 dpi optical sensor offers incredibly smooth, precise tracking for maximum productivity while traveling.