Power options vary: some models are non-powered, some list batteries as optional, and others require 3 AA batteries (not included).
Manufacturer-reported age ranges vary across listings — examples include '1-20 Years' and '3 Years and Up' — so check each product's specific age recommendation.
They offer Auto and Manual modes and self-moving features such as 'push & go', 'bump & go', and friction-driven motion.
When battery-powered, the toys specify 3 AA (3 × 1.5 V) batteries are required — usually not included.
Several models include adjustable volume settings and a mute option for quieter play.