FM function: Bluetooth interphone power on,with earphone, press Rider A key for 3s.
Pairing with the other V2,each equipment has power on, 1) Press Rider A at the same time for
5-7s,till the red and blue light flash alternately. 2) Press either equipment Rider A,till red light
off, blue light flash,at the searching situation. after 5-7 seconds,the other equipment red light
off, blue light flash. pairing successful 3) Press either equipment Rider A,can talk with each
other