... keys 3,Plastic keypad 4,Net weight: 33g ir remote control It is designed with small size, beautiful exterior , Sound ... is used for stabilizing frequency, It is applied for wireless alarms, wireless controlling devices,etc.Using High stability, SMT components, ... ; 3,Transmitting power: > 15mw 4,Operating frequency: 315,430,433 MHZ (available for customer appointment) 5,Transmitting distance: ≤1000m ( ...