Luxebell Bluetooth Headphones Wireless Earphones with Mic for Running Gym Exercise (Green) Bluetooth 4.0 - Max transmission distance up to 30 feet. Supported by A2DP/AVRCP/HFP/HSP solution. Used with iPhone 6, 6 Plus 5 5c 5s 4, Android and most Bluetooth devices One-driving-two Connection: The bluetooth headset can connect to two devices at the same time. Comfortable & Stable Earbuds - Portable and Lightweight Bluetooth Headphones, unique flexible design and built-in earhook custom earbuds ensure you get it perfect fit and remain stable in your ear, let you enjoy music through running, jogging or exercising Built-in superior lithium battery - It supports up to 4 hours talk/play time and super long standby time up to 120 hours when it is fully charged BACKED BY THE LUXEBELL DIRECT GUARANTEE - If you aren't absolutely satisfied, return it within 30 days for a full refund, no questions asked