Microsoft Surface Mouse Specs
Interface    Bluetooth 4.0 LE
Wireless Frequency    2.4 GHz
Compatibility    Microsoft Windows 10 / 8.1 / 8
Microsoft Windows 10 phone
Mac OS 10.10, 10.11 Android 4.4.2-5.0
Host must support Bluetooth 4.0 or higher
Power    2 x AAA alkaline batteries (included)
Maximum Battery Life    12 months
Dimensions (L x W x H)    4.53 x 2.53 x 1.33" (115.16 x 64.16 x 33.76 mm)
Weight    90.9 grams (3.21 ounces) including batteries (battery weight may vary)
Packaging Info
Package Weight    0.59 lb
Box Dimensions (LxWxH)    8.65 x 6 x 2.05"