SuperTooth makes plenty of Bluetooth audio accessories, including its newest headphones, Freedom ($149). The large, over-the-ear headphones connect to devices using Bluetooth 4.0, but the claimed battery life -- 15 hours of talk time, 15 hours of music playback, and 100 hours of standby time -- don't seem to reflect the more power-efficient technology. Inside, there's a rechargeable battery, with a micro-USB cable included for power. The headphones…
