Say hello to your little friend! The Marque M155 is a new product from the Plantronics line; a smarter, smaller and more stylish headset that is geared towards the savvy consumer. We'll see if this Bluetooth headset stands up to the test! First off, it seems the design of the Marque M155 took a nice minimalist turn with only three buttons on the headset. And the optional white version of the device is a welcome change from the usual black line-up of headsets that Plantronics has put out in the…