3.The blue color light will flash by 100ms,and the speaker is on pairing status,use the device 3.The blue color light will flash by 100ms,and the speaker is on pairing status,use the device “0000”.After connected successfully,there will be voice prompts.The blue color light will flash “0000”.After connected successfully,there will be voice prompts.The blue color light will flash automatically paired when re-use next time.