Here is a pair of in-ear sport headphones ready for your favorite exercises. The JBL Endurance Peak II Waterproof Sport Headphones last up to 30 hours on battery (with the charging case). You can take calls and adjust volume on either ear. These earphones are ready for stereo calls. They ship with 3 eartip sizes.
These earbuds have an ergonomic design, so they are comfortable to wear. You can find out more about it here.