FODSPORTS M1-S PRO Manual De Operación página 6

Power Detect Function
PRO
M1-S PRO has power detection function, when device is on, short press
volume - and volume + at same time. Recorded voice message will remind
you.
Power over 90%
Power over 50%
Power lower 50%
Power lower than 10% please recharge immediately
Voice control function( only if your cellphone is equipped): short press
function button once
Switch on external wired devices such as speed detector...: when device is
on, long press volume - and volume + at same time for 3 seconds.
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