This is the complete, end-all of cellular phone amplifiers for the US trucker on 4-G networks. The WeBoost Drive 4G-X OTR is designed for multiple phones, or devices to get amplified all at the same time. If you and your wife / husband / partner / co-driver need to use your cellular service at the same time, this amplifier system will do the trick. Do you use a wifi hotspot from your cell phone provider? This kit will amplify that as well. Get it all and get it done with the WeBoost Drive 4G-X over the road system.