Yamaha has taken the wraps off its latest gadget, the Yamaha PDX-B11 Bluetooth portable speaker. Featuring a rugged design with construction to match, this little speaker just begs to be taken outdoors. Offering a built-in handle for easy carrying, this portable speaker can be powered by an AC power source when indoors or six AA batteries when on the move. Inside, the speaker houses a 10 centimeter woofer and 3.5 centimeter ultra-precise woofer. Built-in Bluetooth means the speaker will stream from any Bluetooth-enabled music source. Available in black, blue, yellow and silver colorways, this handy little speaker can be found at Yamaha audio retailers.