Whitelabel MusicStudio Bluetooth 4.0 Over Ear Headphones, Wireless Stereo Headsets Earphones, Built in Mic Hands-free Calling, 3.5mm Audio Input, Wireless or Wired Hi-Fi stereo headphone, Bluetooth 4.0 good for flight travelling and other noise environments Wireless, foldable, stereo, comfortable cushion, fit your all requirements Dual connection: bluetooth, 3.5mm audio cable, can work with smart phone, tablet, laptop, computer and other devices Mic hands free for telephone calling, answerring, easy to switch during music and calls Built-in rechargeable battery offer long music playback, phone talking time