銆怋luetooth-compatible 5.3 Compatibility銆慐njoy seamless wireless audio with the latest Bluetooth-compatible 5.3 technology, ensuring stable connectivity up to 40 feet (12 meters) 銆怘ands-Free Calling銆態uilt-in microphone and speakers allow for convenient hands-free calling, perfect for driving, cycling, or any situation requiring hands-free operation 銆怴ersatile Audio Experience銆慙isten to music, podcasts, or navigation instructions wirelessly, enhancing your audio experience on the go 銆怑legant Design銆慜ur unisex smart audio glasses perfectly combine the aesthetics of modern glasses with advanced technology to meet the fashion needs of most users 銆怐iscreet Technology銆慡peakers and microphone are cleverly concealed within the sunglasses arms, maintaining a sleek appearance indistinguishable from regular glasses 銆怣ultifunctional Protection銆慣hese smart sunglasses offer blue light filtering and UV400 protection, caring for your eyes while enjoying an active lifestyle 銆怢ong Battery Life銆慐njoy up to 6-7 hours of music playback or 5 hours of talk time, with a standby time of approximately 158 hours Specifications: Bluetooth-compatible Version: 5.3 Bluetooth-compatible 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 Glasses1 x Instruction Manual (French English Italian Spanish Swiss Chinese)1 x Charging Cable