#540221 - 2S Brushless ESC/Receiver
"2 in 1" combined Brushless ESC and 2.4GHz Receiver unit.
Features:
Waterproof
Forward, Reverse & Brake Linear Operation
Automatic Setup System
Over Current Protection
Thermal Protection
Low Voltage Protection
2S LiPo Capable
3 Wire Servo input - requires #540083 - Servo (3-Wire)