Bluetooth Headphones Headset Rymemo Newest 20 Hrs Continuous Playing Time Wireless Music Stereo Sports Running Earphones Vibration Neckband Style for Cellphone,Blue-Black Large battery capacity: More Than 20 Hrs Music Play Time Under Normal Volume Excellent Hi-Fi Sound:Powerful Bass Large Horn, Deliver You High Quality Music Glazing Varnished Surface:Unique Color Assortment, Very Eye-catching in Crowd Wide BT Compatibility:Easy Quick Pairing with Most Smart Cellphones in Market. Easy Button Usage: Build with any needed buttons in two sides of the bluetooth headphones. Conveniently play, skip and pause music, control volume and pick up calls.