GPS and Track Trailer GPS Tracking Unit — 2-Year Battery Life, No Wires, No Contracts & No Monthly Fees — 1-Year Free Service — ASIN: B00NPA42B0

This GPS and Track Trailer unit ships with a preinstalled SIM card and data plan so it’s ready to track out of the box. Mobile and web access are included — monitor locations through the GPS tracking app or the website. The device supports WiFi-assisted tracking for improved indoor location accuracy and operates wire-free with a 2-Year battery life. Service: one year of free service is included; after the initial service period, renewals are $49. No contracts, no monthly fees, and you can cancel anytime.