Bluetooth Headphones Keep Dropping Signal

Hey everyone,

I'm not certain if this is an iPhone problem but I figured I'd ask in here just in case anyone can help me. I have a pair of Bluetooth Jabra Halo 2 headphones (as well as a few others I don't use much anymore), and I've noticed that the signal drops out quite often while walking around town. In some places, they work just fine paired to my iPhone 6+, but in other places the signal is shoddy at best.

I'm wondering if there's something I can do about this? Or if there's a better set that does this far less often? I was looking at Beats recently, but I'm hesitant because if I'm going to drop that kind of money on a pair of headphones, I'd rather know that the signal doesn't drop out all that frequently.

Thanks for any information.