Sanwa has just added a new wireless optical trackball to its product page, the MA-WTB40. Powered by 2x AAA batteries, the device features a 2.4GHz radio frequency (works up to 10 meters), an 800dpi resolution, a scroll wheel and has a detachable wrist rest. Coming in both black and red color options, the MA-WTB40 is available now for 8,190 Yen (about $106).

Source: TechFresh

Sanwa MA-WTB40 Wireless Optical Trackball Pictures

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