4
Unplug the charger after the battery is fully charged.
Preparation before use
1. Charge the mini receiver and transmitter(s). Charging time is about 2 hours.
2. Choose the right microphone and screw it into the mic hole of the transmitter. Make sure it
is plugged in tightly.
3. Make sure the receiver and bodypack transmitter is connected. You can tell by the AF/RF
indicator color. For H-U05, when you speak into the microphone, the AF/RF indicator flashes
Green. For H-U25, when only CHA is connected with receiver, the AF/RF indicator is solid
Green; when only CHB is connected, it is soild Blue. When both CHA and CHB are connected,
it is Green/Blue. If you do not see the correct indicator colors, please go to trouble shooting
in the last page for solution or contact the Hotec customer service.
CONNECTION DIAGRAM
1. For audio device that has 1/4” mic jack
Step 1: Plug the mini receiver into the mic jack of the mic input of your audio device like
speaker, mixer, amplifier. Make sure your audio device has mic input and mic volume
control. You can also change the mic volume from the bodypack transmitter by pressing the
volume up or volume down buttons.
Step 2: Turn the microphone volume to minimum before plug in the mini receiver to avoid
feedback or harsh loopback.
Step 3: Power on the transmitter and receiver. When you see the RF indicator at the right
color, you are ready to use.
2. Connect with iOS or Android smartphones
Step 1: Connect the TS to TRRS cable to the mini receiver;
Step 2: Connect the TS to TRRS cable to the headphone jack of you phone.
Step 3: Power on the transmitter and receiver. When you see the RF indicator at the right
color, you are ready to use.
See Figure 1.
Note 1: if you are using iPhone 7 or newer version without 3.5mm headphone jack, you will
need to use the original lightning to 3.5mm adapter (NOT included in the box). See Figure
2.
Figure 1
Figure 2
