Review on EIGIIS Ergonomic Trackball Handheld Wireless by Alton Walton

I had a mouse just like this except it was plugged into an outlet. So glad to be off the wire. This mouse is perfect because you can maneuver it with one finger and don't need desk space to roll it around. Nice and small, easy to hold in one hand. To make it perfect I want bottons assigned so I can move the right and left click buttons to the top 2 and I want it to be in other colors (red, pink, blue). Also, be careful when ordering from Amazon Warehouse - Mine said like new but was missing a battery cover and needed a thorough internal cleaning. FYI, to clear the mouse when it gets sluggish, use the pen tip in the small hole to the left of the trackball to rotate the black ring slightly counter-clockwise around the ball. This unlocks the ring. Then use the pin to pry off the ring and the ball will pop out. Use a needle and swab to gently scrape the 3 tiny rollers inside, making sure the center hole is clean and there is no residue on the lens - look in good light and make sure itself. A small amount of dirt on this lens will completely ruin the response. With normal use, most people should clean the inside once or twice a year. Amazing little gadget for the money. Worth the price. Also, the seller told me that you can use more than one of these in close proximity as each one needs to be paired with its specific USB receiver immediately. In case you have 2 pieces next to each other like mine :). Another tip: If you want a happy life, surf the Internet on ONE PC and save your valuable DATA on an OTHER. happy mouseing 2 all and 2 all good night.