Is there any differ between bluetrack with other blue optical light mouse? because have fre use blue light optical wireless mouse (dunno which brand)... ...

Nowadays most wireless mouse can perform 10 meters and above (but depend on the quality of the wireless chip between the mouse & the receiver).

Recommended find the brand which had long history in input devices & expert on it (Microsoft or Logitech), or have it own manufacturer for better Quality Control (like A4Tech or Genius).
Of course it will cost a little bit more, but will lower the percentage of device failure.

Usually Bluetooth will cost much more than wireless mouse @ 2.4Ghz, because Bluetooth Organization want $$$ before license their technology to the manufacturer.

dont worry much about the battery problem, just buy a set of good quality rechargeable batteries (such eneloop).
plus, many manufacturer have low battery indicator (either in hardware or software), will warn you before run out of battery.

There have high end wireless gaming mouse from Razer using Li-ion rechargeable battery, but will cost u a lot.

Yap, agree to Keenxlimit answer.
is depend on how you use it in daily (8 hours per day? use it in long distance? for gaming usage).
Getting rechargeable battery will save your money in long term.

Plus, get a good quality (long usage battery life performance) wireless mouse will reduce the chances to change the battery/batteries frequently.