The Olympus LS-10 is one serious recording tool. The company says it can record with studio-like quantity to the 2GB of onboard memory, and there's an SD card slot to expand that memory. The battery life is about 14 hours on two AA batteries and the stereo speakers are built-in. The LS-10 is in many ways is better than a DAT machine: It's feather light (5.8 ounces ) making this unit very portable, but don’t be fooled: the LS-10 has a durable body. It'll be available later this month for $400.