DC1522 Fifteen Channel Transmitter can be used for controlling up to 15 the motorised curtains or motorised roller blinds. Each channel can control maximal 20 receivers in the same time. It can be installed on the New Zealand and US standard flush box, so it need to be fixed on the wall.
Input Voltage: 3V , 2 of AAA Alkaline battery included.
Transmitting Frequency: 433MHz
Transmission Distance: 200 meters open office, 35 metres on two wall.