Shenzhen Guangsudu Technologies Co. Ltd. T11 User Manual

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2.  Charging the dock
*Charging: red LED on
*Fully charged: LED stay white /turned off after 1min
*Charging: red LED on
*Fully charged: white LED on
Trouble Shooting
Follow steps below can resolve any pairing or reconnecting 
issues:
1.  Make sure battery dock has enough power;
2.  Put the ear-buds into the dock and recharge for a while;
3.  Take out both earbuds from charge box, long press both 
earbuds around 3-5s untill both power off. Long press  L & R 
again around 15s, waiting until only R LED red & white flashing 
alternately, then reconnect phone. This method only applies for 
R & L not able to automatically pair. 
only applies for R & L not able to automatically pair.