Feature: 1. Blue Light Filtering: Our smart glasses offer maximum blue light filtering to lessen screen glare and ease eye strain. By blocking blue light from screens, it aims to improve your sleep quality and make your eyes more relaxed, focused and protected. 2. Low Latency Sound: Featuring a 40ms Bluetooth 5.4 connection, the music glasses provide seamless, no lag sound. Our advanced voice technology eliminates the discomfort of long term headphone use, delivering immersive sound that surrounds the ears without any delay or skips. 3. Touch Control and Voice Helper: Through a trendy touch interface of the bluetooth glasses, you can effortlessly play/pause media, manage calls, and activate your smartphone voice helper, permitting you to stay focused on your journey without any disruption. Plus, its dual microphone setup allows for convenient calls. 4. Music and Calls Compatibility: Connect your smartphone to the smart glasses via Bluetooth to play all your favorite tunes. With dual microphones, you can engage in crystal clear HD calls that pick up your voice distinctly in the midst of background noise. It can also automatically prevent surrounding people from eavesdropping on your conversations. 5. IP67 Water Resistant: Our smart glasses boast a strong IP67 water resistant rating, effectively resistant to sweat and rain which excels in outdoor activities. Plus, it is made from TR90 material, offering superior toughness, unbreakable build, and protecting for your eyes. Specification: Item Type: Smart Glasses Material: TR90 Color: Black Battery: Li Ion Polymer Battery (Built in) Battery Capacity: 2 x 160mAh Bluetooth Version: V5.4 Standby Time: 160 Hours Music Playback Time: 6 Hours Talk Time: 6 Hours Charging Time: 1.5 Hours Operating Mode: Slide Touch Functions: Bluetooth Sound, Voice Calling, Voice Helper, Blue Light Blocking, UVAB Proof, UV400 Frame Width: Approx. 138mm / 5.43in Leg Length: Approx. 153mm / 6.02in Bridge Width: Approx. 19mm / 0.75in Lens Height: Approx. 40mm / 1.57in Lens Width: Approx. 53mm / 2.09in Gender: Unisex . Package List: 1 x Smart Glasses 1 x Glasses Case 1 x USB Cable 1 x Glasses Cloth