Blaupunkt WM40U Owner's Manual page 8

Charging wireless receiver: The wireless receiver built in rechargeable
battery power. Using the supplied USB cable to connect the receiver
with your USB charger (USB adaptor or USB output port like on PC, USB
rating output: DC5V, max 2A, other USB charger with current between 1-
2A). The connector should be connected with the DC 5V power jack on
the side of receiver, and another terminal connect with USB charger.
Then plug your USB charger into the household AC power. The charging
LED will in red color during charging, and turns to green after fully
charged. Please up-plug the charger after charged. The receiver will
auto off when the battery power exhausted, please recharge it for using.
Important: We recommend connect the USB charger with rating output
spec at DC 5V/1A, or between 1-2A current USB power. The general USB
output on PC (personal computer) is 5V/500mA (please reference your
PC spec for checking).
Use the microphone
Plug the male 6.3mm connector of wireless receiver into the 6.3mm
microphone input jack of your audio device (in case only available
3.5mm microphone input jack on your device, please use 6.3 to 3.5mm
convertor for connection), push the power on/off button to turn on
wireless receiver; Push and power on the wireless microphone; The
microphone will auto pair with wireless receiver within few seconds.
Check and adjust the microphone output volume from your audio
device, then you can start to enjoy the microphone.
LED signal and reset microphone
The microphone can pair with wireless receiver automatically when we
power on both devices. The signal LED indicator will turn to solid blue
color after pairing successful. If not, you can try to reset the microphone
base on following.
a. Power off microphone and wireless receiver both, make sure there
have battery power inside.
b. Rotate and open up the battery compartment of microphone, push
and power on microphone; press and hold reset button 3 seconds, then
the display will flash which means the microphone is ready for pairing.
c. Power on wireless receiver. When the red LED is in stable, and the blue
LED is flash; that is indicating waiting for pairing.
d. Short press reset button from microphone to confirm. Then the
display and blue LED will in stable which means paired successful.
Notes:
a. In case no need use microphone, please turn it off. And take out the
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