Small and light in-ear isolation headphones with Bluetooth connectivity, the  Backbeat Go from Plantronics weigh in at only 13 grams. Charging via micro-USB, the headphones will give approximately 4.5 hours of sound, and there's even a battery power indicator on your iPhone or iPad or Android 3.0x4.0 devices. Included are three sizes of cushioned eartips and two stabilizers for customised fitting. Inline controls let you pause music to take a call, change volume, or skip tracks.
The Gadgeteer, Plantronics Backbeat Go â" Tiny Bluetooth Headphones