Cdma800: 850-960MHz, gsm1800: 1805-1880MHz (dcs), gsm1900: 1920-1990MHz (pcs), 3g: 2110-2170MHz, gps: 1570-1580MHz, wifi 2.4g: 2400-2500MHz, vhf: 135-174MHz, uhf: 400-470MHz Model number: jyt-cnf880 Cdma800-------850 - 960MHz Gsm1800-------1805 - 1880MHz Gsm1900-------1920 - 1990MHz 3g-----------------2110 - 2170MHz Gps---------------1570 - 1580MHz Wifi2.4g---------2400 - 2500MHz 4g wimax--------2345 - 2400MHz 4g lte------------725 - 770MHz This model has the most advantages: 1. Adjustable switch make you easy to control it. 2. Good cooling system with cooling fan inside 3. Work non-stopped 4. Stable capability 5. Could be used in car directly,With car charger (Option) Total output power: 20w Jamming range: 70m, still depends on signal strength at the given area. Weight: 4kg