Logitech M720 Triathlon Multi Device Mouse

Specifications: 
•Connection Type: Bluetooth® Smart and 2.4GHz wireless connection
•Wireless range: 33 feet (10 m)*
* It may vary based on use and computing conditions.
 
•Battery Details: 1 x AA
•Battery life: 2 years
•Sensor technology: Logitech Advanced Optical Tracking
•Sensor resolution: 1000 dpi
•Scroll Wheel: Yes
•Number of buttons: 8