bone conduction headphones with noise reduction tech, 9 digital n1 open ear headphones with mic, jawbone headphones bluetooth 5.0 sport headset sweatproof for running, bicycling, hiking, yoga -black 9 digital <p><b>9 digital true bone conduction bluetooth headset</b></p><p><i>new technology brings new sound enjoyment</i></p><p><b><i>material:</i></b> pc&abs&titanium</p><p><b><i>chip:</i></b> qualcomm 8635</p><p><b><i>bluetooth technology:</i></b> v5.0</p><p><b><i>bone conduction sensor:</i></b> 2pcs</p><p><b><i>battery: </i></b>li-polymer</p><p><i><b>battery capacity:</b></i> 200 mah</p><p><b><i>charging voltage:</i></b> 5v</p><p><b><i>charging time:</i></b> 2h</p><p><b><i>endurance time:</i></b> about 6.5h</p><p><b><i>standby time: </i></b>480h</p><p><b><i>waterproof rating: </i></b>ip53</p><p><b><i>bluetooth reception distance: </i></b>10m</p><p><b><i>microphone: </i></b>1</p><p><b><i>product weight: </i></b>25g</p><p><b><i>warranty: </i></b>1 year</p><p><b><i>product list:</i></b> bluetooth headset, sponge earbuds, usb charging cable</p>