Sony BMS15 Bluetooth® laser mouse. Device interface: Bluetooth, Movement detection technology: Laser, Movement resolution: 800 DPI. Frequency range: 2.4 GHz, Cable length: 10 m. Battery type: AAA. Mouse weight: 90 g. Compatible operating systems: Microsoft Windows 7/Windows Vista/Windows XP (SP2), Depth: 87 mm, Height: 24.8 mm