Every batch goes through a 72-hour continuous run test before it leaves the floor, and we retest at random across the production run, not just the first and last units off the line. You'll get a COA with each shipment, and we keep a sealed sample from every batch for six months in case of any dispute — it's saved us more than once with customs or buyer claims.
CE, CCC, EN71, and EN14765 are all current and filed, but what actually matters is drift mechanism holds up after 500+ cycles, which we verify on a jig we built ourselves. The dual 775 motors and 2 × 12V12 batteries are matched to limit voltage sag under load, so you don't get that stuttering acceleration some cheaper cars have. In-place drift and tail drift are separate modes, not just the same function with a different name.
Charging takes 8 to 12 hours, which is pretty standard for this battery size, and you'll get about 2-3 hours of run time depending on suface and driving style — carpet eats battery faster than concrete. The Bluetooth remote has a range of roughly 15 meters, and the phone control app is clunky but works; most buyers go with teh remote for younger kids anyway.
Net weight is 29.5kg, so factor that into shippng — it's not a lightweight toy, and the box is 101×64.5×36cm. We usually have stock in white and red, but grey and yellow need a lead time of 20 days or so. One thing nobody asks but matters: the PP plastic is UV-stabilized, so it won't turn chalky after a summer in the yard.
It's not suited for rough terrain or slopes over 10 degrees — the drift tires are hard plastic and lose traction on loose gravel or wet grass. Also, the one-key start is a nice safety feature but can be a pain if you lose the remote; there's no manual override, so keep a spare remote handy.