1. Learning code mode 2. 6 channel receiver module 3. Strong noise immunity Operation voltageDC 3.0V / DC 5. ... )AntennaExternalPackageDIP, 9pin, (D0-D3, Vcc, GND, Key)Size35mm*20mm*6mmCertificationCE(R&TTE), FCC(Part 15.), RoHS Minew company is not only ... be pleased to begin working with you! 6 channel receiver module