Decent Bluetooth Headphones for workout what to buy?

[ladic]

I am looking for a decente pair of BT in-ear headphones with the ability to answer calls.
These will be used for doing exercise.
Anyone can recommend a decent pair at under $50??

What I have seen so far are the

http://www.amazon.com/Jarv-Wireless-Bluetooth-Headphones-Microphone/dp/B00H2QUBMW/ref=sr_1_45?t=slickdeals&tag=slickdeals&ascsubtag=77609cbf6af543f5a75baec4d1b81ebd&ie=UTF8&qid=1399298673&sr=8-45&keywords=bluetooth+headphones

 

[ladic]

I ended up buying these

http://www.radioshack.com/product/i...dium=RSCOM&utm_source=HMPG&utm_content=HMPGA3