Product Name: FSK Transmitter Module (Enhanced Power)Model Number: HM-EPPlace of Origin: ChinaFeatures: 1) Low costs, high performance 2) A few external components 3) 2.2V to 5.4V working voltage 4) Falling edge on I/O trigger data packets and FSK transmission 5) Used in conjunction with Hope\'\'s HM-D decoding module 6) 16 pin DIP/16 pin SOP package Typical application: 1) Automobile door opener 2) Garage door opener 3) Anti-theft system 4) Home security 5) Electrical home appliance control 6) Wireless toy 7) Other wireless system