Frequency Test Range:

1.300Mhz-320hz
2.434Mhz
3.868Mhz

Way to Test Frequency:
Put the remote control close to the device
Press any button on the remote control
The indicator that turns on is the frquency

Way to Test Infrared Working or Not:

Press the key
The infrared indicator turns on - good, off - bad

Package Including:

1pcx Radio Drequency(FR) Infrared(IR)