Reference Title: DC 12V 2CH RF 433MHz Wireless Switch Relay Receiver Module With Remote Control For DC Motor Forward Reverse Controller Description: Deleting existing remote controls data: Pressing 8 times the learning key button on the receiver board, the LED indicator on receiver board will turn off then turn on; The existing remote controls are deleted successfully. Momentary Mode: 1)Press once button (the learning key on the receiver board), LED ( on the receiver board) turn off. LED is off now, before it is bright. 2)Press "A button", then press "B button",LED ( on the receiver board) turn on, informs about setting "Momentary mode" successfully. Toggle Mode: 1)Pressing 2 times button (the learning key on the receiver board), LED ( on the receiver board) turn off. LED is off now, before it is bright. 2)Press "A button", then press "B button", LED ( on the receiver board) turn on, informs about setting "Toggle mode" successfully. Toggle Mode 2: 1)Pressing 3 times button (the learning key on the receiver board), LED ( on the receiver board) turn off. LED is off now, before it is bright. 2)Press "A button", then press "B button", LED (on the receiver board) turn on, informs about setting "Toggle mode 2" successfully. Please Note: This remote control only support the learning code (1527) of the receiver Compatible with remote control using these chips: PT1527,EV1527, SCT527, HS1527, SCL1527, FP1527,EV1527 Do not use this remote control to clone other remote controls, or you will lose the built-in 1527 encoding. Attention: 1. Please do not charged operation, you should shut off the power, and operation after testing and correct electricity. 2. Please promptly change battery when remote control voltage is insufficient, (when the battery voltage is insufficient, generally get close transmitting). 3. Please pay attention to avoid metal mask,large equipment ,strong interference electromagnetic filed when using wireless RF products,and avoid too short distance between the remote control and receiver board. 4. Please avoid abnormal using of the product. Abnormal using will reduce product performance and life, when seriously it may damage the products and even make danger for your safe. Specifications: Model: KR1202-4 Working Voltage: DC 12V Quiescent Current: 5mA Working Frequency: 433Mhz Receiving Sensitivity: -104dBm Function option: Momentary/Toggle Modulation Mode: ASK Matching Mode: Intelligent Learning code Output Mode: Dry contact /Voltage output Working temperature: -30~+80 PCB dimension: 68.248.2mm/2.691.90in (Approx.) Quantity: 1 Set (other accessories demo in the picture is not included) Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 X Receiver module (KR1202-4)(include Shell) (No retail package) 1 X Remote Control (include battery)