INSTALLATION AND USAGE INSTRUCTIONS
GETTING STARTED
1. Mount the Transmitter on your detector’s shaft using the O-ring strap, as shown in
picture 1.
2. Connect the Transmitter to your detector’s control box with the mini USB / 6.35 mm audio
jack cable (Pic.2).
3. Plug your headphones (not supplied) into a 6.35 mm headphone jack on the Receiver
(Pic.3). If your headphones have a 3.5 mm jack, use an adapter (not supplied).
4. Turn on your detector, the Transmitter and the Receiver (sequence doesn't matter).
5. The MDLink wireless audio system allows you to choose one of 4 channel options. Quick
press the channel button to step through the channel selection. The Transmitter and the
Receiver must be on the same channel to work together. Once the modules are
successfully paired, you will hear a beep sound and the LED light will flash constantly.
6. If two MDLink systems are located close to each other, they need to operate on different
channels to eliminate mutual interference.
7. If the Transmitter is disconnected from the Receiver (due to channel change or connection
loss), you will hear a disconnect signal while the current channel LED indicator will blink in
a repeating pattern.
8. Use the "+" / "-" buttons on the Receiver to adjust the volume to your preferred level. In
some cases it may be necessary to adjust the volume on your detector’s control box as
well.
9. There are 10 levels of volume control. Once the maximum or minimum volume is reached,
you will hear a low pitch sound indicating the upper or lower volume limit.
10. The current channel and volume level remain in the device’s memory after the power
button is turned off.
11. The Transmitter connected to the metal detector can transmit signal to several receivers at
the same time. In order for the MDLink to work correctly, all the receivers and the
Transmitter must be set to the same channel.
TRANSMITTER & RECEIVER CHARGING / LOW BATTERY WARNING
12. Each module of the MDLink wireless audio system contains a rechargeable Li-Ion battery
and a built-in charge controller.
13. To charge the battery, you need to plug one end of the USB/mini USB cable (supplied) into
the Transmitter or Receiver and the other end into a USB charger (not supplied) or a
power bank (not supplied).
14. When charging the Transmitter or Receiver battery, the LED light will flash blue. Once
charging is complete, the LED will turn off by itself.
15. When the Transmitter or Receiver is turned on, the channel LEDs will flash briefly.
Depending on the number of LED lights, you can get a rough estimate of the battery
charge level (each LED represents 25%):
• One Light = 25%
• Two Lights = 50%
• Three Lights = 75%
• Four Lights = 100%
16. When battery level drops to roughly 5%, the battery LED will start blinking red and you
will hear a warning beep in your headphones.
17. When battery level approaches roughly 2%, the LED indicator will be flashing red
constantly and the beep will sound every 30 seconds until the battery is fully discharged.
EN
