Lightweight & Comfortable Whether you’re looking for a lightweight and efficient headset for your business calls, or a set of comfortable, reliable water- and sweat-resistant in-ear buds to use in the gym and during sports and activities, we got you covered. Not only are these iJoy earbuds all of the above, they also feature a special shape that follows the contours of the ear and make sure they will stay in place, no matter what! The 1# Earbuds for Hassle-Free Listening: By combining a light and comfortable body, cutting edge connectivity features, and a quality of sound rich enough to satisfy even the most demanding listener, this amazing wireless Bluetooth earbud set is about to become your new everyday must have companion – at home, at work, and even at the gym. Get Connected to Any Device - It's Easier Than Ever These iJoy Gravity TWS Earbuds use advanced Bluetooth 5.0 technology, and support HSP, HFP, A2DP, and AVRCP. In other words, they are easy to pair and connect to almost any Bluetooth-compatible device, and provide greatly improved transmission speed, rich in-call stereo sound, and a low-latency listening experience with close to no interruptions.