Mac Computer Bluetooth 4.0 (BT LE) Compatibility
1. Go to your menu (top left of your screen) and click "About this Mac."
2. A window pops up showing you your OS X version and some other details. At the bottom of the window is a "System Report" button. Click on it.
3. A new window pops up with a list of options to click on in the left panel. Under "Hardware," click on "Bluetooth." The information in the right panel will change.
4. In the right panel, look for "Handoff Supported." If it says no, you don't have Bluetooth 4.0. For further verification you can scroll down to "LMP Version." If you have Bluetooth 4.0 the LMP version will be "ox6."