The headphones adopt the conduction technology to transmit the sound through the particles to the cclea They are excellent for people who don't want anything to cover them or enter them in the nests They have an open ear design that provides an incredible experience of live surround sound They are compatible with any Bluetooth device available and ideal to exercise thanks to their IPX5TECNOLOGA DE CONDUCCIN SEA the sound is transmitted through the particles to the auditory nerve it is not necessary to put the driving headphones in motion and you can enjoy the music while avoiding the dangerAURICULARES IMPERMEABLES the lightweight and waterproof tecnologa IPX5