When I first got this Agama M-905BT USB mouse as a gift I was like what brand is this? I have never heard of the brand name before that time but surprisingly enough this mouse is a nifty little peice of equipment and it packs a lot of neat specifications. It has a led that gives you the status when the battery is running low. It also has 8 way scrolling capability, you just press and hold the button to move the cursor in 8 different directions Up/Down/left/right and diagonaly. This is a Blue tooth mouse which allows you to save a USB port if you have a Bluetooth capable laptop. if not, you would have to use a bluetooth dongle to be able to pair this mouse to your laptop. Some other nice things are the 1600 dpi optical resolution it has and the neat little on/off power switch it has at the bottom which allows me to easily turn off the mouse when I'm not using it in order to save battery life. I have not had this mouse for too long so currently I can not comment on how long the battery lasts. It also comes with Two Stick-N-Go mounts so you could stick the mount to your laptop and snap the mouse to the mount and thus carry it with it attached to the notebook.