The model Thirty 3G headset is the latest from Lightspeed, and it's packed with features and performance. The key to the headset's quiet ride is a combination of the company's very effective active noise reduction (ANR) technology and big, cushy earcups that use a special foam to keep things quiet. The headset looks substantial, but it weighs just 15 ounces. It also features the company's smart auto-shutoff technology, so if you forget to turn it off, you won't need to replace the batteries next time you go flying. Perhaps the most innovative feature of the Thirty 3G is the auxillary audio interface, which lets you attach a personal music source or a cell phone input, which makes calling for a clearance or a fuel truck, even in an otherwise noisy environment, a piece of cake.