The remote is not small -- about 4.5 inches tall, 3.75 inches wide and over 1 inch thick. A battery is included in the package, and recharges in the dock. Chestnut Hill didn't specify how long the battery lasts, just that it "works for a few hours with constant use." The sleep mode can be adjusted, so I'd imagine the battery life isn't too bad. It's got great range, 25-30 feet.