• Bluetooth v4.1 + EDR provides wireless connectivity for music and calls. • Memory card slot allows for playing music directly from a memory card. • Built-in microphone enables hands-free calling. • Optional audio jack for wired connection. • Built-in TPT antenna and radio set for FM radio. • Sweat-proof design for use during workouts. • Noise cancellation technology reduces background noise. • Multi-point access allows connecting to multiple devices.