Retractable Bluetooth Headset】Control the cord with button; cable free from tangling, You can put it in your pocket or bag with other small objects without any mess or clip on your cloth.【Handsfree Calling Wireless Headphone】This Bluetooth Headphone allows you to leave your phone and sets your hands free for other things but not miss any call. When there's a call coming, it will remind you with vibration.【Clip ON Bluetooth Earbud】Collar clip and flexible pulling design is no kinking and no broken which is in order. It's convenient to clip under your collar and easy to carry.【Noise Reduce & Crystal Sounds】built-in HD microphone with advanced noise reduction technology offers crystal clear audio and natural sound, allowing you to enjoy high quality music and clear phone calls wherever.【Multi Applications】Single in ear bluetooth headset provides the clear sounds. Wearing comfort, good for car drivers, businessmen, compatible well for most of devices with bluetooth functions.