Wltoys 124017 Parts-The Upgrade Alarm for the Battery. You can hear the Alarm in 50 meters distance. You can freely set the alarm voltage value. With this upgrade tool, you can predict the remaining battery power in advance.This parts is for Wltoys 124017 RC Truck. Wltoys 1/12 RC Racing Car
if you want to buy more parts for this RC car,
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Wltoys 124017 Parts
