Durable and tough, the HA-XC50T XX True Wireless In-Ear Headphones from JVC are designed for those who want to enjoy deep bass sound as they work out. The construction of these earphones allow them to withstand vigorous exercise, as they are sweat, water, and dust resistant, and their rubber protectors provide shock resistance. There's little delay in listening to your favorite music, as the XX headphones automatically power on and connect to their last known Bluetooth device as soon as you remove them from their protective charging case.