Bluetooth Vision: 4.1,Longest wireless range 10 meters Fashionable design with foldable sunglasses, the headset is adjustable and can be freely telescoped Wireless Listen To Stereo Music, Set Aside To Answer Phone Automatically Converted The Wireless Set Aside To Answer Phone Calls, Flip-Up Glasses Earphones Built Directly On To The Frame, And Can Be Adjusted For Comfortable Fit This item comes with 1 Year Replacement Warranty All Over India. Successful Warranty Claims under the policy will be covered with a replacement of a new product unit.