Tunebug at CES unveiled a new line of mobile speaker products, the Shake and the Vibe. Both products feature are claimed to generate sound waves that pass through different surfaces. Shake is a portable sound generator that is said to replicate surround sound within many bike and skateboard helmets. Users can connect the device to iPods, MP3 players, mobile phones, as well as any other portable music device that utilizes Bluetooth technology or audio cables. It features a rechargeable battery with up to 5 hours of playback, while recharging requires a USB cable.