At first I found the earpiece a little bulky but got used to it. The sound quality as always with Bose is great. I work out on a stair climber that does does have a heart rate option so this unit fits in perfect. It is extremely accurate. Highly recommend.

Sound & Heart Rate Monitor

Cost

I've tried Beats, Jlab Epic2 and more, and none of them compared to the sound of these. Deep bass and comfortable during my entire workout. Highly recommended

I've used these just once since they arrived and they were great. I went running and they stayed in my ears well, connected to my phone no problem and the sound quality was brilliant as you'd expect from Bose.

Great product for active/sporty types or just wondering around town. Initially purchased after getting annoyed with wires in the gym and exercising. But I have used them for running a half marathon in the pouring rain and they worked brilliantly, ran the London Marathon in them and the battery had...

If someone doesn't give these 5 stars then they need to move to the Middle East, they are amazing, stay in your ears perfectly and sound great. The hr monitor also works as it should.

"Better than most. Sound quality is GREAT! As you would expect from Bose. They begin to hurt and feel uncomfortable after a couple of hours of use but all do after a couple of hours. But due to sound quality, the best I've owned thus far. " Show More

Love the sound and heart-rate monitor feature. Be sure to check for firmware updates on a regular basis.

The sound quality on these headphones is second to none. Best sounding sport headphones I have ever owned

I bought this soundsport 5 months ago, everything was perfect until last. It won't turn on. The red battery light blinks when I charge it. I thought it was green Am I right After being charged for a while the blinking light will turn to solid light, but still, it won't turn on.

I have been a keen runner for over seven years now and I have to listen to music when I am running, to give me that extra push when I need it when it gets tough. Therefore I have now been through quite a lot of different running headphones.

Bluetooth; Wireless; Hate Rate Sensor; Sound; Comfortable

Price; App needed for Heart Rate