●With motor forward and reverse learning function. ●Speed Set:1.1-4.2V. ●Size(L W H):About 95 53 30 mm. ●Size(L W H):About 124 62 38mm. ●Size(L W H):About 146 62 38mm. ●Brakes:Low-L evel. ●Booster:1:5.
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