Open Ear Design: Experience the comfort of our open ear headphones that don't cover your ears tightly. Perfect for staying alert in outdoor settings like jogging or cycling, these headphones combine safety with quality sound, ensuring you're aware of your surroundings while enjoying your music. & Secure Fit: At just 27 grams, these headphones are designed for all-day comfort and a secure fit. The skin-friendly material and behind-the-ear design prevent them from falling off during vigorous activities, making them ideal for sports enthusiasts. Advanced Bluetooth 5.4 Technology: Enjoy a seamless connection with our latest Bluetooth 5.4 technology. Offering a stable connection within 10 meters and up to 10 hours of talk time, these headphones are perfect for long days out without worrying about disconnection. Safety LED Light Feature: Enhance your visibility during night-time activities with our headphones' LED light strip. Choose from various modes like breathing, flashing, or steady to match your environment and mood, ensuring your safety during evening runs or walks. All-Day Comfort and Performance: With a titanium frame and earbud-free design, our headphones offer unparalleled comfort and stability. Enjoy continuous music, calls, and podcasts for up to 10 hours, perfect for your daily commutes and workouts. Product Information Bluetooth Version: 5.4 Model: W2 Charging Time: 1.5 hours Battery Life: 25 hours (lights off) Weight: 275g (no wear) Battery Life: 15 hours (breathing light) Compatibility: iOS/Android/ Battery Life: 8 hours (lights on) Color: Black Material: PC+ABS Package Contents: 1*Bluetooth headset 1*Charging cable 1*Instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.