Hotsale 8 antennas portable signal jammer handheld cell phone jammer with nylon case lojack version
No need to use another jammer,this  bands jammer can meet your target of most general type of affected frequencies.Easy to carry on,it's handheld.Good cooling system with cooling fans inside. 
Frequencies:
CDMA&GSM        850-960MHz
DCS&PCS   1805-1990MHz
3G            2110-2170MHz
GPS          1570-1580MHz
WiFi          2400-2500MHz
4G LTE      725-770MHz (American standard)
Or            790-826MHz (European standard)
4G Wimax  2345-2400MHz (American standard)
Or            2496-2690MHz (European standard)
Lojack     167-175MHz
 
Features:
1.With nylon cover, easy to carry.
2.Configured to block eight different frequency bands continuously or simultaneously.
3.With DIP Switch.Separete swicth for each band,accopanied with a working LED light.
4.Total RF output power up tp 5.5 watt.
5.Could be used in car directly. With car charger and AC charger.
6.. With Built-in Battery: 4000mA/h.Charge full time about 4Hours.Working time: 1.5 hours.
7. Inside 2 cooling fans and heat sink design ensure the device to work continuously.  
 
 
Important Notes for Jamming Distance: The jamming distances we mentioned on website are for customer's reference only. The actual jamming distance will be varied depending on the signal strength and the use location and if full charges, etc.
Important Notes for Portable Jammers with No Cooling Fan: Do not use the jammer when it is charging, or it will burn the jammer as it has no built-in fan. If because of this factor due to the broken of the jammer, the customer will lose the authority of free repairation .