Ear Hook Bluetooth Wireless Headphones Bone Conduction Headphones Headset Durable One Size Concealed Speakers Without Ear Plugs, no hurt ear hole which come from normal Earplug Long battery 8hours music time at 60% battery. More than 200Hours standby time High Quality sound for music earphone Ear hook type, very light, Plainless Wearing in long time us Easy to control. Control in line English Voice reports incoming message, call and phone number, show battery in ISO system Bluetooth headset Package: Bluetooth Earphone x1 Charging Cable x1 Use Manual x1 Technical Parameters The Bluetooth Chip:4.1 Operating Rage: With 10meters The Music Time: 8 hours(60% battery) The Charging Time: 1.5hours Applicable Product: Android, Iso5.0, Wp System, Suitable for all Bluetooth enabled devices Function: Hand free calling, listen music, Voice reports incoming call, phone number, and battery low remind. One button - multifunction 200Hours standby time, 8 hours Music (60% battery), and 6-10 hours call, 1.5hours fast charging.