Lenovo Professional Bluetooth Rechargeable Mouse, Color Storm grey, Cable Length/Type USB-A to USB-C Charging Cable, length 50 cm (19.7 inches), Battery Life Up to 3 months in single charge (may vary based on usage), DPI - Three-stage DPI setting (800, 1600, 2400 as default), can be set from 800 to 4,000 in increments of 100 DPI by Software, Connection Type Bluetooth® 5.1