Make certain they are on the same frequency. On the UT4, the frequency will be on a sticker on the back or bottom. On the UT2, the frequency will be on a sticker inside the battery compartment (probably under the battery).
If the frequencies match, then the system will need to be sent for repairs. Call Delta Audio at 773-764-3634 to have it repaired.
If the frequencies do not match, then they will never work together.
Answers & Comments
Make certain they are on the same frequency. On the UT4, the frequency will be on a sticker on the back or bottom. On the UT2, the frequency will be on a sticker inside the battery compartment (probably under the battery).
If the frequencies match, then the system will need to be sent for repairs. Call Delta Audio at 773-764-3634 to have it repaired.
If the frequencies do not match, then they will never work together.