These true wireless earbuds comes with a charging case and is designed according to the size of the ear. The ergonomic design makes these earphones provide all-day comfort and stay put in ears while you're running jogging weight lifting walking and gym training. With the Bluetooth 5.0 technology these Bluetooth earbuds pumps out the deepest bass and ultra-clear midrange. The excellent dynamic unit enhances the high-definition sound. These earbuds allows hands-free calls while driving or music streaming without having to control through your phone or electronic device. The long-lasting battery life includes a built-in 60mAh lithium battery. There are up to 3-4 hours of music time at 50-70% volume.