WHAT: HMDX Jam wireless portable speaker
HOW IT WORKS: This is a Bluetooth speaker that plays audio from a phone, MP3 player or computer. The "jam" theme runs throughout the product, including packaging in a jar with a twist-off lid and coming in a flavorful array of colors: strawberry, grape, blueberry, blackberry, apricot and apple. The internal battery, charged through a USB cable, can provide four hours of play.
HIGH POINTS: The sound, for starters. For such a small (2½ inches in every direction), portable and light speaker, this little fellow produces impressive and fairly comprehensive sound with surprisingly strong bass. I compared the speaker with another Bluetooth speaker costing nearly
LOW POINTS: When switched on, the speaker emits a shrill, unpleasant beep. Also, the material on its bottom used to adhere to surfaces picks up lint, dirt and dust.
PRICE: The list price is $49.99, but you can find it for less at many retailers.
-- Josh Noel, Chicago Tribune