Smart Audio Sunglasses. ?? Stand out with the Astrid Smart Audio Sunglasses, featuring TAC polarized lenses with a gold–amber front and aqua-blue edges . This dynamic mirror finish not only blocks glare but also adds a bold, futuristic vibe that shifts with the light. Built for performance and style, Astrid makes every run, ride, or beach day unforgettable. Stay connected without missing a beat! Key Features: ?? Bluetooth 5.0 + EDR — Fast, stable, no lag! ?? Music Time: 3–4 hours ?? Talk Time: 5 hours ? Charging: Just 1.5 hours ?? Battery: 120mAh ?? Range: 10–15m ?? UV400 Polarized Lenses — Block glare, see clearer ??? Built-in Mic & Dual Speakers — For calls, music, podcasts ??? Touch Control — Volume, calls, play/pause, voice assistant ?? Smart Features: Voice assistant, HD stereo sound ?? Lightweight, comfy fit (Only 40g!) Wear them anywhere. Pair them with anything. Live wire-free. ???? Perfect for sunny days, busy calls, and vibey playlists. What is TAC Polarized Lens? TAC stands for Tri Acetate Cellulose (TAC) - this polarized type of lens feature cutting edge tech formulated for superior visual and clarity. The technology is also considered scratch resistant due to its coating, impact resistant, super-lightweight, and of course blocks 100% of harmful UV rays.