Description Quick Hand Held TransmitterFeaturesNumber of Keys - 2Power Supply - 3 alkaline AAA batteries or rechargeable NimsMicrocontroller-operated functionsFSK modulation and carrier frequency 913MhzOperating temperatures from -15°C to +70°CPossibility to control more receivers with one transmitterTwo functions can be activated at the same timeFloatingAlso working with rechargeable batteriesKeyboard backlighting by means of LEDs