Vrunow Sport Earphone, Bluetooth Wireless Stereo With Microphone In Ear Water Resistant Earbuds For Sports Wireless Bluetooth Version 4.1 Earbuds with Microphone, Built in LED Indicator Light, Signal Strability, Smooth Talk. Improved Sweatproof & Water Resistant DESIGN: Ergonomic in- ear Design, Unique small elevation, headphones not falling, more Comfortable, perfect fit for running, jogging, cycling, CrossFit or hitting High Compatibility: Compatible with All Bluetooth Enabled Devices, Such as cellphones, iPad, Laptop, PC... HD Quality Headphones Stereo Sound for Music and Smooth Talk for Calling, support Volume Control, Easy to use. Lasting Power of life: Play Music Time: 5 Hours, Talk Time: 5 Hours, Standby Time: 130 Hours, Charging Time About 2 Hours.