Top features:- Sweat proof headphones keep playing the music throughout your workout – Heart rate feedback while working out – Hands free calls with in-line control and Bluetooth connection – Quick recharge so you don’t waste time waiting Sweat proofIf you’re not sweating, it’s not a workout. You know this, we know this, and JBL know this. That’s why the JBL Reflect Fit Wireless Bluetooth Headphones are designed with sweat resistance. So no matter how much you sweat, these headphones will keep providing the inspirational music for your personal workout montage.Heart rate feedbackYou can get an instant read-out of your live heartrate from the JBL Reflect Fit Headphones. A great way to keep an eye on your status as you work out, without the distractions inherent in pulling out your phone.Hands free callsThe JBL Reflect Fit Headphones vibrate for incoming calls, so you won’t miss a call while working out. You don’t even need to interrupt your sit-ups to answer, as the neckband controls and Bluetooth connection let you answer or reject calls without reaching for your phone.Quick rechargeYou get up to ten hours of use from a two hour charge. And if you’re in a rush, you can get an hour of power in just 15 minutes.