Blackview D2 Polarized Outdoor Cycling Sunglasses ✔UV400 UV Protection & Windproof Design w/ Soft Nose Pads ✔Open Stereo Speaker w/ Intelligent Noise Reduction ✔Dual 120mAh Battery, Up to 10 Hours of Audio Play ✔Bluetooth Calling & Voice Assistant with Your Smartphone 🏅【 Ultra Lightweight TR90 Frames】 Blackview D2 Cycling Sunglasses Frame Is Made of Sturdy and Light TR90 Material, the Whole Running Sunglasses Only 0.07 Pounds, Which Is Extremely Lightweight. 🏅【 Tac Polarized Lenses】 Blackview D2 Smart Glasses Utilize Tac Polarized Lenses. Tac Material, Uv400protective Coating Hd Lenses, Effectively Block Harmful Uva and Uvb Rays, Reduce Eye Fatigue, and Make the Vision Clearer and Softer. 🏅【 TR90 Frames and Adjustable Nose Pad】 -An Active Lifestyle Means That Your Sports Glasses for Men & Women Will Have to Be Tough and Rugged Enough to Meet up to Whatever Challenges You Throw at It. the Specially Designed Stress Resistant TR90 Frame Can Meet up Whatever You Dish out to It and More ,in the Meantime,the Nose Pad Is Made of Soft Rubber, Skin-friendly, and Non-slip. It Can Be Adjusted According to Your Nose Shape 🏅【 Strong Design for All Sports】The Strong Design and Durable TR90 Frames Make These Baseball Sunglasses Suitable for All Sports.they Are Ideal for Cycling,Mtb,Biking,Driving, Running, Baseball,Fishing, Golf,Skiing and Climbing or Other Outdoor Activities 🏅【 Bluetooth Connectivity for Music and Calls】 These Smart Glasses Support Bluetooth Connectivity, Allowing Easy Connection to Your Smartphone for Wireless Music or Phone Calls Anytime, Anywhere-ideal for Sports, Driving, or Outdoor Activities. 🏅【 Ventilation Design & Intelligent Noise Reduction】 Ventilation Prevents Sweat Buildup During Rides by Guiding Airflow in and out, Effectively Alleviating Stuffiness and Moisture Accumulation to Keep Your Face Dry and Enhance Wearing Comfort; Actively Identifies and Filters Environmental Noise; Maintains Clear Voice Calls Even During Rapid Descents. 🏅【 Music Function】Simply Connect via Bluetooth to “D2.” No Need to Pull out Your Phone—Just Tap the Temple Button or Give a Voice Command, and Your Music Responds Instantly. Your Personal Dj, Always on Standby. Smart Touch Button Operation Guide: (Blind operation during rides prevents accidental touches; easy control even with gloves on. Stay focused while riding—precise blind operation is the real power.) Glasses Power On/Off: Power On: Open the temple arms
Power Off: Close the temple arms Bluetooth Pairing: After powering on, enable your phone's Bluetooth, search for the device name (D2), and connect. Volume Control: Volume Up: Long press right button for 1 sec
Volume Down: Long press left button for 1 sec Voice Assistant: Triple-tap left/right button (Note: Single tap cancels) Remote Photo Capture: iOS: Double-click left/right button
Android/HarmonyOS: Single-click left/right button
Notes: *On some Android devices, double-click left/right button when not in call or playback mode Music: Music Pause/Play: Single-click left/right button
Music Track Switching:
Double-click left button to go back one track
Double-click right button to go forward one track Answer/End Call: Single tap left/right button Reject Call: Long press left/right button for 1.5 sec