Features: k3 bluetooth headset sunglasses perfectly combines polarized sunglasses with bluetooth 4.1 headset. polarized eyeglass, providing protection to reduce glare, filter light and protect your eyesight. fashionable glasses frame, uses high-grade materials, lightweight, flexible and durable. compatible with bluetooth-enabled android and ios smart phones, such as, for iphone 6s 6; for samsung s6 s5 note 5 4, lg, htc one; tablet pc, etc. supports hands-free function with microphone, bringing you much convenience to answer the incoming call during driving & travel. also supports voice prompts.