MP3 BLUETOOTH SUNGLASSES BATTERY LEAD TIME: Audio Glasses is with 5.3 Version Bluetooth Chipset to Save Power, Battery Playing Lead Time is up to 7 Hours

OPEN EAR SMART GLASSES: Bluetooth Glasses for Men and Women, Glasses is 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 ASSISTANT VOICE COMMAND : Bluetooth 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

DUAL CHANNEL AND STEREO SOUND SMART SUNGLASSES: Sunglasses is with Volume Up and Down Button as Well as Forward and Backward Feature

SAFETY GLASSES LENS TECHNOLOGY: Transitional Blue Light Glasses Lens Meet US Safety Lens Standard,Impact Resistant & 100% UV Protection Polarized Lens, The Blue Light Blocking Feature is Good to Use Indoor Reading,the Transitional Technology Lens will Change Lens Color from Clear to Light Grey Outdoor Under Sunshine and will Change Light Grey to Clear Color Indoor.