PixArt 3950 sensor with resolution up to 30,000 DPI for exceptionally precise and reliable tracking Polling rate up to 8000 Hz and 70 G acceleration for instantaneous response during competitive gaming Triple-mode connectivity via USB, 2.4 GHz wireless and Bluetooth for maximum versatility Ultralight construction weighing only 56 g for faster movements and greater comfort during extended gaming sessions OMRON switches rated for up to 100 million clicks for durable and reliable performance 2x Replaceable 400 mAh Li-Polymer battery providing up to 61 hours of use or up to 20 hours at an 8000 Hz polling rate PTFE skates, flexible paracord cable and software support for smooth movement and personalised adjustment