... with 2 pins or 4 pins 4. Active (with IC): DIP 14, DIP 8, metal packaging SMD (7*5 ... 12.270MHZ 8. For bluetooth:16.000MHz 12.000MHZ 32.000MHZ 26.000MHZ 9. For wireless WIFI: 25.000MHz ... .28.8MHZ. For remote control: 455E,4.000,MHz,32.768KHz. 2. For air-conditioner: 4.194304MHz,4.000MHz ... For small appliances (kitchen):4.000MHz, 6.000MHz,4.194304MHz,32.768KHz. 4. For toys and game catetory (remote control) ...