About this item 【Bone Conduction Technology】: Our patented bone conduction headphones convert sound into mechanical vibrations of different frequencies, and transmit sound to the auditory nerve through the cheekbone instead of air, ensuring your both ears remain completely open to ambient sounds. 【Stay Safe】: There are reflective strips attached firmly on the neckband and both sides of the headphone, which are made of high fluorescent materials, keep you visible to people, cars and more, when you are in night running exercises. What’s more, open ear design can avoid some dangerous situations from happening as you can also hear the surrounding sound when you use it to listen to music. 【Designed For Long Wear & Healthy】: Titanium neckband is lightweight and flexible to ensure maximum comfort during extended wear. Also, open ear design helps you achieve the true painless and harmless as the earphone is no need to plug into the ear canal. It can keep the inside of the ear canal clean and hygienic as well. Combined with a long battery life, this ergonomic design headset allows you to enjoy continuous music and calls for 5-6 hours at a time. 【Premium Sound Quality】: Latest QCC Chipset brings faster and more stable connection, combined with our latest innovative technology, these bone conduction headphones can greatly reduce natural sound leakage and offer you a premium sound quality. Built-in CVC 8.0 microphone achieves clearer phone call. 【Ultimate Durability】: Certified with IP56 waterproof, our headphones resist sweat, moisture, water drops, and dust throughout your indoor or outdoor activities. Firmly workout frame and the high quality materials ensures these headphones withstand most of vigorous exercises of running, cycling, hiking, etc.