TrackmateGPS Bolt 3G Portable Tracker- Heavy Duty, Long Lasting, Rechargeable, 5000mAh Lithium Ion Battery. NO CONTRACT: Monthly plans starting at $9 a month. Ideal for tracking vehicles, assets, teens or childrens briefcase. USER FRIENDLY: 24/7 Online Activation, US based Customer Service. OTA adjustable settings and troubleshooting. STAY IN TUNE: Track in real-time on-line or from your phone with our app. Provides alerts and automatic reports. SPECIFICATIONS: 3.8 x 1 x 2.2, 7 ounces. Built-in, Heavy-duty Magnets, USB wall charger included.