Features 1. You can go about your day with the freedom of listening to your favorite songs or making phone calls on the go, for a truly immersive, hands-free listening experience with the headphone function: high-fidelity metal headphones, super bass, in-ear headphones, pluggable. 2. These glasses are equipped with the Bluetooth 5.0 that gives you outstanding range and faster pairing. Rotating, light, no clothes, comfortable pressure, in-ear earphones, long-lasting wear and painless operation with touch keys, making the phone more convenient. 3. These rechargeable sunglasses speakers offer 3-5 hours of playback time to let you listen to your music, podcasts, audio books, or video games longer than ever. They also charge to full in just two hours! Specifications: Weight: 32g Standby Time: 150 hours Frequency: 20Hz-20KHZ Frame Material: PC Bluetooth Distance: 10m Bluetooth Version: V5.0 + EDR Wearing Method: Head-mounted Mode of Operation: Button Communication Function: Support Compatible Platforms: Android/ios Input voltage: 5V/D C 500mA (maximum) Continuous talk time: about 4-5 hours Storage Temperature: -20C-80C Lens Material: Resin, Polarizer, UV400 Resistant Color: Black Lithium Battery: Built-in 200mA polymer lithium battery Play Music: About 3-4 hours Headphone power: 32/0.5W net weight Package Includes: 1 X Bluetooth Sunglasses