I bought the Anycom mouse 3 weeks ago. It is a really small mouse but a little larger like the Bluetake.
It is a stylish mouse and the handling is nice. It works perfekt with Windows XP SP2 without any additional software. The optical sensor is ok for work, but I whould not use it for ego shooters.
The mouse has an ON/OFF switch and a sleep mode. You can use standard AAA (rechargeable) batteries.
The package includes a USB charger. You can dock the mouse into it and still use it.