... 2 SMD crystal, 4*2.5 SMD crystal, 3.2*2.5 SMD crystal, 2.5*2.0 SMD crystal and 2*1.6 SMD crystal) with 2 ... : Communication 1. For fixed phone: 3.579545MHz 2. For cordless phone: 10.250MHz,10.245MHz,10 ... 32.000MHZ 5. For Wireless bluetooth, GPS, RF(2.4G), Parking distance control and navigation: 16.000MHz, 12 ... 000MHz,50.000MHz, 10.000MHz8.000MHz.6.000MHz. 2. For security prevention: 13.560MHz,24.000MHz,12 ...