Advanced CSR V4.0 wireless Bluetooth headphone: easy and fast pairing with smartphones, tablets and other Bluetooth devices, Compatible with iPhone 6/6s, 6 Plus/6s Plus, iPad, Samsung Galaxy and so on.;Lightweight earbuds, Headphone can be used for jogging, exercising, gym and other activities. Cable clip can be used to clip in collar so as to avoid earbud falling. Voice prompt allows notification of call.;Built-in a lithium battery, the Bluetooth headset supports up to 6 hours talking time & 4 hours playing time after it is fully charged. charge the item by AC Adapter (5V, 1A cellphone adapter is OK) not power bank or USB port on PC.;Comes with a storage box and high-grade packaging, Ideal present for your families and friends. Lifetime Guarantee if there is any quality problem with Product;CVC 6.0 technology offers optimal noise reduction to provide the crystal clear sound during calls and while listening to music.