AOSILEY Q5 Bluetooth 4.1 Sport Headphones Running Gym Exercise Sweatproof Earphones for outdoor Car Hands-free Calling Headsets with Microphone High-fidelity Stereo Sound (Blue) Bluetooth 4.1 Chip: The latest Bluetooth chip, can transmit data at high speed and bring you smooth music experience. Its low power ensures long lasting battery life: up to 7 hours continuous music time. Ear Tips: Q5 comes with a pair of T-light ear tips, you can put them on Q5, then fit them into your ears. They can help the earphones fix firmly in your ears and not fall out. Exercise-proof & Sweatproof design guarantee 100% Stable and Comfortable when exercising, running, climbing, driving, skating,camping, fishing and other outdoor sports.? Clear Calls: Q5 has a built-in microphone inside, you can use it for calls. When a call comes, you don't need to pull off the earphones, just press the button and talk. Fashionable: Finally we picked out three colors: green, red and blue, because we think they can best stand for your energy, passion and peace in mind.