Looking for a good wireless earphone for you workouts, we have F2 for you. Equipped with 4.1 Bluetooth technology, and range up to 30 feet, give you seamless music experience. F2 ensures that you get crystal clear sound quality. With playback of 5 hours, you are sure to spend most of your day with these earphones, Listen to music or take calls all can be done without the need to accessing your phone physically, with inline controls on F2.