Bluetooth Sunglasses,Voice Control and Open Ear Style Smart Glasses Listen Music and Calls with Volume UP and Down,Bluetooth 5.0 Audio Glasses and IP44 Waterproof. Wireless Speaker with Smart Assistant Technology Like Hand Free Phone Calling and Answering, Easily Speak Siri,Cortana and Google Now to Connect to Your Favorite Music Stations (Pandora,iTunes,Spotify and more),Easily Speak for Directions, Weather and Traffic Updates. Bluetooth Sunglasses with Open Ear Speaker System Allows You to Listen to Your Favorite Music and Everything around you. HD Microphone Offers High Quality Sound While on Calls. Smart Speaker Sunglasses is with Volumn Up and Down Feature as Well as Forwarder and Backware, Battery Playing Lead Time is up to 10 Hours. ULTRA SLIM DESIGN: Mobile Phone Thickness Design, Flexible Material Frame and Very Light Like a Normal Sunglasses Weight. Exclusive US Style Design,Neat,Unisex and Very Comfortable to Wear while Relaxing and Exercising. UV400 Polarized Full Protection Lens for Great Color, Clarity and Contrast.