Welcome to the store! Features: - Shipping: New - Material: Plastic - Color: As shown in the picture - Input Voltage: 11-12.5 V - VDC: Connect power supply's positive pole - GND: Connect power supply's negative pole - Operating Current: Approximately 138mA (relay absorption mode) - Static Operating Current: Approximately 8mA (relay mode) - Module Type: 433MHz 4-channel 12V wireless learning module (4 channels can learn separately) - Reception Distance: 15-100 meters (can pass through walls) - Operating Mode: Self-locking, Jogging (two types of operating modes; each channel can be set independently as self-locking or jogging) - Operating Instructions: D5 (power indicator), D1-D4 (relay indicator), D6 (learning indicator) - Output Mode: Normally open (CK), Common (COM), Normally closed (CB) (Note: Normally closed and Common in normal state are connected, so the module output is used as a switch; Switches are often used when the closed end is not used, only the normally open and common) - Module Size (Receiver): Approximately 6.5 x 5.6 x 2.2 cm - Weight: Approximately 77g Note: All specifications are manual measurements, please allow 1-3 cm tolerance due to lighting and display differences, there may be slight color differences depending on the physical object received. Your satisfaction is our highest priority. We will provide you with the best service. If you find any issues after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately, and we will provide you with the best solution!