Wireless listen to stereo music, set aside to answer the call automatically converted. 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. • Bluetooth4.1 Music sunglasses ,can listen music,Bluetooth 4.1, support both headset and hands-free profiles, calling voice and Reporting phone number function when calls coming • Support iPhone iPad iPod Samsung HTC Sony Smart Phone PC Tablet • 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! • You can get manufacturer warranty and superb customer service.