SP750 - Why cannot pair with my devices?

Below reasons will be caused cannot pair or difficult to pair/connect -

1. DO NOT set BOTH devices to PAIRING MODE correctly. 
2. Your Bluetooth device or speaker paired/connected to other Bluetooth device when pair.
3. Due to the Wireless environment interference, such as WIFI router.

Please turn off the other nearby Bluetooth devices, then please follow below steps to have a try:

Step 1. Reset the speaker -- Press and hold MFB for 5 seconds until you hear two beeps.

Step 2. Make sure that your speaker  is in pairing mode -- Press and hold the MFB for 2 seconds, you will hear a tone and the LED light will flash BLUE.

Step 3. Active Bluetooth on your phone / tablet / PC and look for “ Avantree SP750” on the list of found devices, select it to connect.