Establishing a radio link | Synchronizing the receiver and transmitter

Conditions and restrictions for using frequencies

There may be special conditions and restrictions for using frequencies in your country.

Before putting the product into operation, find the information for your country at the following address: sennheiser.com/sifa.

To establish a radio link between the transmitter and receiver, we recommend the following procedure.

To successfully pair a receiver and a transmitter, both devices must have the same frequency range.

Step 1: Set a free frequency on the receiver

We recommend using the AUTO SCAN function, as this is the most reliable way to identify free frequencies (EM-XSW 1: Setting the frequency automatically (AUTO SCAN) | EM-XSW 1 DUAL: Setting the frequency automatically (AUTO SCAN) | EM-XSW 2: SCAN menu item).

If you know free frequencies in your area, you can also set the frequency manually (EM-XSW 1: Setting the frequency manually | EM-XSW 1 DUAL: Setting the frequency manually | EM-XSW 2: TUNE menu item).

Step 2: Synchronize the receiver and transmitter
  1. Press and hold the SYNC button on the transmitter.
    The LED flashes alternately red and green.
  2. While the LED is flashing, short-press the SYNC button on the receiver.
    The transmitter and receiver are synchronized and the connection is established.