Whether practicing on the on the range or laying poolside, enjoy the rhythmic sounds of music without the hassle of external cords or earbuds with the Callaway Smart Glasses. With speakers built right into the frame, the Callaway Smart Glasses will sync with any Bluetooth enabled device to deliver music or receive phone calls wirelessly.Features• Connects to most mobile devices via Bluetooth• Listen to and remotely control music through temple touch controls• Make and receive phone calls• Receive text and email notifications• Comes with built-in external speakers as well as single & double ear bud options• 8-10 hr. battery life