Vtech Sit-to-Stand Learning Walker

This product is for children ages six months and up. With a barnyard of friends to cheer baby on, little ones will love learning to walk with the Sit-to-Stand Walker. Start out with the easy-to-remove play panel for floor play or fun on the run. Then step it up with the fun-to-maneuver walker. There are three spinning flowers, five piano keys, colorful rollers, three light-up shape sorters and a telephone handset. The Sit-to-Stand Learning Walker keeps baby on track by teaching shapes, colors, animals, music and more. Requires 3 "AA" batteries, included. Measures 5.8"L x 20.9"W x 15"D.
— As of 12/17/2012 this product had 4.3 out of stars from 472 reviews on Amazon.com. Cons: Wheels don't have enough traction; too "loud and obnoxious;" too expensive.