Qinux ClipBuds

A new way of listening to music while having your ears totally free
They do not need to be inserted inside the ear, and therefore cannot damage the eardrum. They allow hearing impaired people to wear hearing aids at the same time.
By allowing you to hear what's going on around you, they reduce the risk of accidents while practicing sports.
Just press the power button for a few seconds and access the phone's Bluetooth settings to select the device.