ir remote control 1,Size: 72 x 34x 6mm (ABS) 2,Max keys: 21 keys 3,Plastic keypad 4,Net weight: 33g ir remote control It is designed with small size, beautiful exterior , Sound wave resonator (SAW) is used for stabilizing frequency, It is applied for wireless alarms, wireless controlling devices,etc.Using High stability, SMT components, SAW (sound wave resonator)Optional for encoding ICOptional ...