Bluetooth 5.3 CompatibilityEnjoy seamless wireless audio with the latest Bluetooth 5.3 technology, ensuring stable connectivity up to 40 feet (12 meters) Hands-Free CallingBuilt-in microphone and speakers allow for convenient hands-free calling, perfect for driving, cycling, or any situation requiring hands-free operation Versatile Audio ExperienceListen to music, podcasts, or navigation instructions wirelessly, enhancing your audio experience on the go Elegant DesignOur unisex smart audio glasses perfectly combine the aesthetics of modern glasses with advanced technology to meet the fashion needs of most users Discreet TechnologySpeakers and microphone are cleverly concealed within the sunglasses arms, maintaining a sleek appearance indistinguishable from regular glasses Multifunctional ProtectionThese smart sunglasses offer blue light filtering and UV400 protection, caring for your eyes while enjoying an active lifestyle Long Battery LifeEnjoy up to 6-7 hours of music playback or 5 hours of talk time, with a standby time of approximately 158 hours Specifications: Bluetooth Version: 5.3 Bluetooth Range: Approx. 40 feet (12+ meters) Speaker Specification: ACC Battery Capacity: 100mAh + 100mAh Charging Time: Approx. 70 minutes Standby Time: Approx. 158 hours Talk Time: Approx. 5 hours Music Playback Time: Approx. 6-7 hours Control: Touch-sensitive on left and right Frame Material: PC Lens: TAC + UV400 (Anti-UV) Temple Material: PC Waterproof Rating: IP65 Package included: 1 x Smart Glasses 1 x Instruction Manual (French English Italian Spanish Swiss Chinese) 1 x Charging Cable