The Microsoft Surface tracks smoothly and fits comfortably in hand, no cables attached.
Bluetooth 4.0/4.1 LE, 2.4 GHz, Windows 10/8.1/8, Windows 10 phone, Mac OS 10.10.5/10.11.1/10.11.4, Android 4.4.2 - 5.0, 115.16 x 64.16 x 33.76 mm, 90.9 g, 2 x AAA
