2.4 ghz wireless optical nano mouse black usb
optical 2.4 ghz wireless nano mouse model mp2375blk . features optical sensing technology 2.4 ghz wireless connectivity automatic wireless synchronization and . scalable dpi . it has built-in scroll wheel and stowable nano receiver . package contents optical 2.4 ghz wireless nano mouse nano receiver 2 aaa batteries user s manual and arranty information . system requirements pc amp mac compatibles windows 2000 xp vista and 7 mac os 10.3 and above . an available usb port