4. How to pair the phone with the BTR1?

A:1) Turn on the Bluetooth function on your phone and make sure it's ready for pairing.
2) Set the BTR1 to pairing mode (the blue light and red light will flash alternately when it's in pairing mode). 
You can set the BTR1 to pairing mode with the below methods:
a. After powering on the BTR for the first time, it will enter pairing mode automatically (only for the first powering on after you get the BTR1)
b. While the BTR1 is powered off, hold the Power button for around 5 seconds to force the device to enter pairing mode