Eshion Wireless Bluetooth 4.0 Bone Conduction Headphones Headset (Black) Innovative Bone Conduction Technology -- Transmit sound through the skull directly to the auditory center, which eliminates many steps of acoustic transmission. It can achieve clear sound reduction in a noisy environment, so as to release the ears and revert to the delicate tone function. Suitable for people who jog, run, cycle, etc Built-in Headphone, Free Your Hands: Wireless bone conduction headphone ensures handsfree calling / answering and music listening in driving,riding. Adjustable silicone tension band for tight and comfortable wearing. No worries of the headset falling. Less Interference, More Safety-- Bone conduction speaker makes the sound directly transmitted to bone chain through internal conduction of bone, helps you enjoy the purest sound and keep sensitivity to surrounding sound in a noisy environment. Supported Apple iPhone6s/6/Plus/5s/5/4s/4 and Samsung Galaxy S6/S5/S4/LG, iPad, Sony, HTC, HUAWEI, Lenovo, Xiaomi, ZTE, Nokia, Motorola, TCL, Alcatel and other mobile phones with Bluetooth.