There are all kinds of devices out there that want to usher your old tech into the new digital world. Some, like Blumoo, just want to let you control your TV from your smartphone. Some want to connect your car, and others want your home to be some sort of eerie automated cubby. Twenty just wants to save you from buying new speakers. The digital amplifier connects to existing home audio solutions (or desktop speakers!), and offers Bluetooth connectivity with your handheld gadgets.