Features:Multiple colors- Five different colors have been designed for your choice, including Black, Green,Yellow,Red andBlue. Pick your favorite color and do sports with a different feeling.Double-cavity design- TE adopts in-ear design to build the independent double-cavity configuration. It can effectively reduce the cavity resonance to optimize the bass and make the alt bright and clear, to let you hear balanced sound.TE utilizes latest Bluetooth 4.1 chip, which has a faster and easier connection and lower power consumption, to bring you a long-lasting music experience.Conform to your ears- The ear hooks and tips conform to the shape of your ears so they stay comfortably in place all day long, even through tough workouts.Lightweight, durable case- Sport-inspired case has been designed to match your earphones and protect and store them when not in use. The portable design allows TE to be with you wherever your workout takes you Color:Green Model Number: TE