I bought these Bluetooth wireless earbuds because I wanted to exercise without my earbuds keep falling out. I go jogging with these and they work wonderful. Their full charge lasts about 7 hours and there is a small indicator light that functions to show if the earbuds need charging, or have finished charging. These also came with extra earbuds in different sizes to fit comfortably in my ears. The sound quality is great. There are 3 buttons on the right side of the earbud: the "plus" button to increase volume, the "play" button to pause/continue music, and the "minus" button to decrease volume. These buttons are convenient because it allows you to control the music volume without reaching for your phone. These earbuds are magnetic so they snap together side by side for easy storage.