Mpman BT18SP - Manual (Page 5)

Charging
Charging starts when the unit and the computerare connected.
Charging is completed in about 3 hours at most
Indicator light
Blue light: when playing music, blue light flash slowly; when pausing, blue light keep bright;
under Bluetooth Mode, entry Bluetooth blue light flash at the speed of seconds; waiting for pairing blue light flash
at the speed of 0.5 seconds; after paring, blue light flash 3 time every three second; Bluetooth disconnecting
blue light flash at the speed of 0.5 seconds.
Red light: when charging by USB cable, red light keep bright, full charged light went out.
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