HiFo Bluetooth Earphone - "HeartBeat Sports 100" with Sports App, Heart Rate Monitor, Pedometer, Map/GPS Tracking, Noise Cancelation, Battery Status (Black)

EDIT: SO the battery stopped holding a charge, and will now die after a few minutes of using it. they lasted just under one year.These headphones are extraordinary for the value. The sound quality is amazing, and the amount of outside noise heard while they are on is amazingly minimal (and I wear them next to passing trains). I would 100% recommend the to a friend, as I do not think you can get such a great value for such a fair price in any other heart rate monitoring headphone. I wish I could give it 5 stars...but my issue is with the accompanying app. The app is in metric units, giving it a maximum weight input of up to 99 kg, which is equivalent to 218 pounds. Given that 218 pounds is not that high in American weight standards, I think it should be increased. Additionally, it would be awesome if the app could sync with apple Health App. If i even knew these issues were being considered, I would give it 5 stars.

These earphones were a disappointment. I bought them for the heart rate monitor feature. The heart rate is monitored through an led sensor in the ear piece. I found the heart rate to be extremely inaccurate.If all you want to do is listen to music on the earphones the audio quality is average. They do stay put on your ears while exercising. They are plenty loud. The accelerometer feature seems to work ok.The recording feature on the app kept stopping during the exercise time.Item returned for refund.

As wireless headphones they work well - but if that's all you want there are less expensive headphones that are the same or better quality.I bought these for the heart rate monitor- and unfortunately ignored the other product reviews that spoke of how the application freezes/ doesn't work. I've experienced the same on both my Samsung S7 and Note 4. As it trys sync it freezes. I've removed the software and re-installed it multiple times- but still run into the same issue. It's no wonder the app is ranked so badly on Google Play

I'm now on the 2nd set of these earphones. The headphones are experiencing similar problems to the prior set that I returned. Once I paired them up and downloaded the Navigator app the earphones are constantly reminding me that "sport mode" is on or off. I cannot get the Navigator app to recognize the headphones despite installing and uninstalling the app and pairing and unpairing the headphones. I like the concept of a heartrate monitor and pedometer but maybe the manufacturer is trying to do to much. I'm thinking I will return this set of headphones soon.

I bought these headphone as a christmas gift for my boyfriend and they were glitchy from the first day he used them. The sound would go out on one ear piece and then eventually they lost their ability to connect via bluetooth. He had thrown away the box so we can return them. I feel bad that I wasted my money on these and they gave him trouble while at the gym. Never again will I buy from this company :(

Worked nice initially but the heart rate monitor is very unpredictable and requires constant adjustments.Now, you cannot let your heart rate go up because then you start sweating and then it's down hill from there. The app will start coming on and off, it will make phone calls to the last number you called (just called my sister who's in CA at 3 AM her time).Battery life is poor.

The sound quality on these was horrible, and the bass was non-existent. After a few month of use, a plastic piece separated exposing the wiring. Soon after, the audio stopped altogether. I paid too much for these to be that poor quality.

I did not like the fit of these. I tried it all possible ways and it just did not fit well and kept moving and losing connection to heart rate monitoring.