Boult Audio — vibrater not working

Address:

Village Post Rajpura tehsil gunnour district sambhal, Village post Rajpura tehsil gunnour district sambhal, Sambhal, Uttar Pradesh, 243727

My boult wireless earphone vibrator not working
When my phone is ringing then earphone vibrator not work
I have two wireless earphone
But my new wireless earphone vibrater not working and i will not resv calls becoz when i drive bike then i wi not understand someone calling me or not   replace all