Equipped with Liquipel Nano Coating Technology designed to give you added protection from sweat and water during from sweat and water during workouts and outdoor activities. The compact form factor is clean and streamlined; beautifully designed to stay on securely without clumsy, bulky and uncomfortable ear hooks. Bluetooth v4.1 allows you to enjoy your favorite tunes wirelessly during your daily activities from work commute to training for the next big game. Simply charge via the micro-USB port in just 2 hours. The battery safe mode will turn IMPACT WIRELESS off automatically if it is not paired to a device after 10 minutes.