Excellent Customized Colorful ( Anime Hetalia Axis Powers ) Wireless Mouse For Girl's Gift 2.4 GHz -3 Adjustable DPI Levels - Nano USB wireless receiver (SB-W-49769) Well and unique design wireless mouse Such kinds of plastic made no harm to your body. High quality Customize Image scratchproof and never fade Compatible with PC, Mac and Ultrabooks. Windows XP, Windows 7, Windows 8, Mac OS X v10.4 or later Powered by two AAA battery (not included)