It can be hard work, using a spotter and/or your vehicle's mirrors to move a trailer into a tight space such as a parking spot or garage. The Trailer Valet RVR, however, is intended to make the job easier. Essentially, it's a remote-control trailer-parking tank.
Equipped with either two or four planetary gear motors (depending on the model), the aluminum-bodied RVR is simply hooked up to a trailer's coupler via an included hitch ball – two sizes are provided – and is then steered using a radio remote control unit from up to 40 ft away (12 m).
Its heavy-duty caterpillar treads reportedly allow it to operate on a variety of surfaces, such as asphalt, gravel, grass and dirt. One charge of its lithium-ion battery should be good for up to 30 minutes of runtime.
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The RVR is being offered in three models weighing 45 to 77 lb (20 to 35 kg), and which are capable of driving single- and dual-axle trailers weighing up to 3,500 lb (1,588 kg), 5,500 lb (2,495 kg) or 9,000 lb (4,082 kg). Prices range from US$2,100 for the 3,500-lb-capacity model, up to $4,100 for the most powerful version.
You can see the RVR in use, in the following video.
Source: Trailer Valet