Highly-Effective Noise Canceling Circuitry  9 Hours Talking Time  Hands Free  Swivel, Folding Design  Listen To Music Wirelessly With Bluetooth Product DescriptionFree yourself from tangled wires and city noises The i913 frees you from the tangle and limitations of wires using Bluetooth wireless technology. Not only that, but outside sounds that interfere with pure music enjoyment [...]