MOUSE ELECOM : Three New Bluetooth Wireless Mouses from Elecom

Elecom Japan released three new Bluetooth wireless mouses (mice?) in Japan:

M-BT4BL Series, a five button laser based mouse offering up to three DPI resolutions (800/1200 and 1600), Bluetooth 2.1+EDR Class 2 weighing only 59g.

M-BT3BR Series, a five button optical based mouse offering up to three DPI resolutions (800/1200 and 1600), Bluetooth 2.1+EDR Class 2 weighing only 59g.

And the M-BT2BR Series, a three button optical based mouse offering a 1000 DPI resolution, Bluetooth 2.0 Class 2 weighing only 55.4g.