General description 3X Universal Receiver RX Multi-Frequency is designed for garage door remote control, operating within a frequency range of 300-868 MHz. This versatile relay module supports multiple codes and is compatible with various remote controls without interference. Technical specifications Working voltage: 9V-30V Frequency: 300MHz - 868MHz Distance: 30-50 meters Number of codes: 400 Material: metal + PVC Measurement error: +/- 1-3 cm Compatibility and accessories Package Contents: 3 x Receiver 3 x English manual