Bluetooth Sunglasses OldShark V4.1 Bluetooth Headphones Sports Sunglass with Handsfree Answer Phone Music Mp3 Player for Android IOS Smartphones and All Device with Bluetooth BLUETOOTH EARBUDS -- Our Bluetooth headphones feature Bluetooth 4.1 + EDR audio decode technology, giving these wireless earbuds unparalleled stereo sound quality. Enable clearer sound during calls and while listening to music. PAIR WITH ANY 2 BLUETOOTH DEVICES AT A TIME These Bluetooth headphones for iPhone 6, Android phones & tablets and other Bluetooth devices can pair with 2 different devices simultaneously! This gives you double the possibilities for answering calls and streaming music to your workout headphones, all while enjoying premium Bluetooth earbuds wireless sound quality SUNGLASSES STYLE -- Enjoy music in the sun without disturbance and protect your eyes and eyesight. Hands free answer call when you are driving or riding a bicycle.It can pair with devices up to 10 meters away. LONGER LISTENING With Bluetooth Earbuds, The polymer 150mAh battery in the Bluetooth headphones wireless device provides 8 hours of talk & playing time & 100 hours of standby time. Much more than other sports headphones! This product is sold exclusively by Old Shark and registered Trademark by Old Shark. Only buy from Old Shark to get genuine Old Shark products with manufacturer warranty.Any questions, please contact us, we will provide excellent service.