Press the control, just press to take the phone call, and free your hand. Premium microphones pick up your voice clearly over background noises and directed output stops people around you from overhearing your calls. BT 5.0 connects, providing clearer sound and a more stable signal. and up to 6 hours of listening time. A new audio experience, listen to books/songs without headphones while cycling or walking, maintain awareness of your surroundings. Features: Two Types Optional: Its anti-blue light lessens screen daze to protect your eyes, reducing eyestrain while appreciating entertainment or working; while the polarized replacement lens protects your eyes from the sun. Low Latency Audio: The smart glasses' outstanding 5.0 BT connection delivers a stable signal, and smooth, stutter-free sound that allows you to stay immersed without any disruptions from audio delay or skipping. Touched-Support & Voice-Assistant: Change melody tracks, plays or pause media, manage calls, and activate your smartphone's voice assistant -- all from the glasses' press-control interface, more convenient to use. Semi-Opening Experience: Come with speakers and a custom audio processor to deliver clear, immersive sound to the space around your ears. Enjoy your favorite songs while maintaining awareness of your surroundings. Extended Playing Time: A single charge of our smart audio glasses gives you up to 6 hours of listening -- enough to keep you entertained while you hike, run errands, do chores, and more. Universal size and light in weight. Specifications: Color: Black-Anti-Blue Light, Transparent-Polarized Lens (Optional) Material: Plastic Battery: 100mAh Item Size: 142.96 * 160mm/5.63 * 6.3in Item Weight: 130g/4.59oz Package Size: 180 * 75 * 60mm/7.09 * 2.95 * 2.36in Package Weight: 150g/5.29oz Packing List: 1*Audio Glasses 1*Cleaning Cloth 1*USB Cable 1*Glasses Case 1*User Manual