Yamaha has lifted the lid on its latest product – the PDX-B11 Bluetooth portable speaker. With a design that looks like it will stand the test of time, and probably the odd camping trip, the speaker has a built-in handle for ease of portability and can be powered by an AC power source when indoors, or by six AA batteries. Inside, the speaker uses a 10 centimeter woofer and 3.5 centimeter ultra-precise woofer for enhanced sound performance. With built-in Bluetooth, the speaker can stream from any Bluetooth enabled music source. The speaker is available from Yamaha audio retailers. (via Hypebeast)