Samsung Level U Pro Bluetooth Wireless In-ear Headphones with Microphone and UHQ Audio, Bronze Connectivity Technology: Wireless Stylish, premium design with two-way speaker units and UHQ Audio (Ultra-High Quality Audio) for superior sound Flexible urethane joints and lightweight design for a comfortable fit Splash and sweat resistant for active use Battery Life up to 9 hours talk/9 hours play/300 hours standby Stylish, premium design with two-way speaker units and UHQ Audio (Ultra-High Quality Audio) for superior sound. UHQA is compatible with select Samsung Galaxy devices Flexible urethane joints and lightweight design for a comfortable fit Splash and sweat resistant for active use Battery Life up to 9 hours talk/9 hours play/300 hours standby, kindly refer the user manual given below for troubleshooting steps.