The SureCall SC-SOLOI-15 M2M signal booster is designed for use in machine-to-machine (M2M) applications, such as ATMs, vending machines, and modems. Its compact size and extension cable allow it to be connected directly to a modem or data card. Compatible with all major carriers except Nextel. The kit includes 3 dB magnetic mounted antenna, RG58 extension cable, USB AC power supply, screw and hook and loop mounting kit, and user manual.