Support TF card extension up to 32GB
Transmission distance is up to 20m (open space)
3.5mm audio jack provides a simple wired connection of a variety of devices
Allows you to answer or reject phone calls anytime and anywhere
With rechargeable battery， it is convenient and practical to charge via USB
Playing music time is up to 10 hours， and continue talk time up to about 12 hours， standby time up to more than 180 hours
Best choice for listening music， watching movie， chatting online etc.