|Bluetooth® Low Energy compatible 4.0 / 4.1 /4.2/5.0|
|Wireless frequency||2.4 GHz frequency range|
|Wireless range||30 feet (10 meters) in open area; up to 15 feet (5 meters) in typical office environment|
|Compatibility||Microsoft Windows 10 / 8.1|
|Device must support Bluetooth® 4.0 or higher|
|Dimensions||4.65 x 3.00 x 1.67 in (118.2 x 76.3 x 42.4 mm)|
|Weight||3.21 oz (91 g) (including batteries)|
|Battery||2 AAA alkaline battery (included and pre-installed)|
|Battery life1||Up to 15 months1|
|Warranty3||1-year limited warranty|
 Battery life may vary based on user and computer conditions.
 Available colors may vary by market.
 Microsoft’s Limited Warranty is in addition to your consumer law rights.