It's very ergonomic and fits my hand perfectly. The build quality is excellent and the price is competitive. It is pink and super cute.

Rechargeable is nice, and you can use it while it charging. One standard aa battery would last for years in my other tecknet mice. Comes in a lot of fun colors to choose from.

The cursor movement is very smooth and instant, with no perceivable lag. The scroll wheel is smooth and has detents in it to prevent a runaway scroll. Level adjustable dpi provides precise cursor control.

G usb dongles always seem to work reliably as long as you have a free usb port. Uses a wireless dongle to connect, which stores conveniently on the bottom of the mouse without sticking out.

This one is running through batteries & yes i flip the switch off after use. Eats through batteries too fast. Changed the batteries and nothing. Still didn't work.

The unit works great for the first couple of weeks, then scrolling wheel acts up. However, clicking causes the plastic to creak/vibrate, causing a frequent motor-like noise. The scroll wheel is so smooth it slides on my finger and doesn't roll.

Buy any other mouse, not this one. Cheap but not worth it in the end. If not, it's better to invest in a better brand.