A.Headset summary:
1. Phone function: answer / hang up / refute / callback.
2. Three-way calling.
3. neckband&in-ear style.
4. neckband style charging port by magnetic bar design, improve the ear hook To prevent the pull, and fall down, resulting in some damage to the ears and pain.

B.Sports headphones: for your sport, gym, running, mountain climbing, riding more dynamic, power and passion, wireless control and wear to add your convenience and fashion. For the movement came into being, let the sweat more fierce.