... 21 keys 3,Plastic keypad 4,Net weight: 33g ir remote control It is designed with small size, beautiful exterior , ... stability, SMT components, SAW (sound wave resonator)Optional for encoding ICOptional for the outside colorTech Data: 1,Operating voltage: DC5/ ... ± 0.2MHz; 7,Transfer data rate: 3-6k8,Encoding type: fixed code, learning code, rolling code9,Encoding chip : PT2262, EV1527, HCS30110,Size:72 ...