... ON/OFF Equipments Remote Open/Close Window Curtain,Gate,Barrier,Shutter,Garage Remote Switching ON or OFF Lights!Remote Switching ON ... Weight: 600gRecommend Remote Part Number:For 100meters: YK101;For 1000meters: YK110, YK110A;For 3000meters: YK130Skype: AsiaGSMalarm 1 Way Wireless Remote Light Switch K110,RF Radio Frequency