I picked one of the new GGTB's up and really like this little device. This pic is the brushed nickel with brass end caps and it's beautiful. At $73.00 it's a great deal. It's a 901/808 native device and uses a 17670 battery for 3.7v & 2 CR123A batteries for 6v. It's entirely mechanical with a locking button. It's the best crafted, most solid device I've seen. It's also nice and small, only about 4 inches long and and slightly larger than a penny in diameter.