The Selfie two-station restroom trailer from Satellite Suites has an onboard freshwater tank and battery pack, allowing up to 700 services without needing to be hooked up to exterior water or power. The company says this makes it ideal for events that are up to eight hours long with 200 people or less. It is a twin-axle trailer with a 227-gallon waste tank and a 139-gallon freshwater tank. The overall length (with tongue) is 10.5 feet, and it weighs 3,820 pounds for easy towing and setup. It is made with nonwood, seamless materials to prevent water damage and mold buildup. Packages can include air conditioning, solar lighting or both. 574/742-4613; www.satelliterestroomtrailers.com.