Music shairing

Operation for FM and Music

About opertion of controling cell phone

About opertion of controling cell phone

About operation of camera

Functions of video download App

How to pairing for 4 R3

R1-plus 2 sets / 6 sets pairing operation guide

R1-plus photo and video operation guide

R1-plus and mobile phone pairing and FM operation guide

Operation guide for pairing R1 with mobile phone and prompt switching in Chinese and English

R1-plus application scenario