MG958 Servo Motor Micro Coreless Motor with propeller(7x20) 4 Pieces Channels 4 Independent Channels Frequency Channels 4 Independent Channels Frequency 315 MHz 433 MHz RF Operating Voltage (Receiver) DC 5V 12V (varies by model) Operating Voltage (Transmitter) 12V battery (27A type) Range Up to 50 100 meters (open area) Output Type Relay outputs (Momentary Toggle Latching modes) Relay Rating 10A @ 250V AC 10A @ 30V DC per channel Modulation ASK (Amplitude Shift Keying) Encoding Learning code (programmable pairing) Antenna Included (spring type or SMA high torque N20 micro gear motor rated at 6V with 600 RPM output ideal for robotics