You sound like you might not be 100% familiar with the forum or English, so let me help you out.
1. I think you mean hands free, I don't know what heads free is and I honestly don't want to find out, it sounds scary.
2. People don't refer to them as hands free, that's usually only used when speaking about the action in legal-like language (cell phone use is only allowed hands free) most people call them just "headphones".
3. This is the forum for the SPRINT HTC one M8; it's one model newer than the M7 and it's only for the SPRINT network, a United States only network. Please visit the correct forum for the device you own.
Sent from my HTC One_M8 using XDA Free mobile app