Logitech M557 Bluetooth Mouse Keyboards Frequency response (Microphone): 100 Hz

Frequency response (Microphone): 100 Hz -10 kHz

Weight: 14

no-tangle cable connects to the USB port on a Mac® or PC for plug-and-play simplicity

Battery Life (not rechargeable): 24 months

Choice of Mechanical Switch

Logitech M557 Bluetooth Mouse Keyboards Frequency response (Microphone): 100 HzWorks With Almost Any Device Connect to any Bluetooth enabled PC or Mac or Windows 8 tabletno receiver required. Go For One Full Year The M557 offers exceptional battery life for a Bluetooth mouse. All the Control You Need Customizable buttons give you one touch access to the things you use most, like the Windows 8 Desktop and Start Screen. Bluetooth Wireless Connect to any Bluetooth enabled PC or Mac computer or Windows 8 tabletno receiver required.