Designed for comfort and portability. The length is 100 mm and the width is 58.1 mm
Design is suitable for use with either hand. 2.4 GHz frequency range
Scroll wheel for easy navigation
Built-in mini transceiver (USB) storage for ultimate portability. COMPATIBLE: Win 10 64 bit, Win 10 32 bit, Win 8.1 32 bit, Win 8.1 64 bit, Win 8 32 bit, Win 8 64 bit, Win 7 32 bit, Win 7 64 bit, Win RT 8.1, Win RT 8. Mac OS 10.10, Mac OS 10.9, Mac OS 10.8, Mac OS 10.7. Android 5.0, Nexus 9, Android 4.4.4, Nexus 5