brand new and high quality Features: This is a simple, safe and convenient, widely used, compact and flexible remote control switch. Small volume, stable & reliable performance , high receive sensitivity, low power consumption. Strong signal which can pass through walls, floors and doors, control receiver from any place within a reliable distance. Wireless control, Easy to use,learn, relearn and control. Work with for DC Power / Rechargeable lithium battery / Rechargeable. Widely used in led light, battery power switch, lamp beads, small LED, relay, light bulb, buzzer, trumpet, circuit board etc. Receiver & Transmitter only, other accessories demo in the picture are not included! How to change working mode : Momentary : Connect the right side 2 points (for M) Latched : Connect the left side 2 points (L) Toggle : Let Point L and Point for M in non-occupation Momentary-press one button is working /ON. loosen your finger on the same button is stop/OFF. Toggle-press one button for one for time is working/ON .press the same button again is stop/OFF. Latched-press one button is working/ON ,press another button is stop/OFF. Learning Code : Latched: Input 3.5V-12V for the Receiver , Connect the Learning Dot, The receiver Led indicator ON. Press remote button A 1 for time, Led indicator flash for 3 times , Then Press remote button B 1 for time , Led indicator flash for 3 times again , it mean learning successfully. Momentary / Toggle : Input 3.5V-12V for the Receiver , Connect the Learning Dot, The receiver Led indicator ON. Press remote button A 1 for time, Led indicator flash for 3 times , Then Press remote button A 1 for time again , Led indicator flash for 3 times again , it mean learning successfully. Clearing Code: Connect the Learning Dot 5 seconds . Until the receiver Led indicator From ON to OFF, it mean Clearing Code. Specification: Material: Plastic Input Voltage: DC3.5V-DC12V Working Voltage: DC3.5V-DC12V Wide Range Working Voltage: DC3.7V/ 4.5V/ 5V/ 6V/ 9V/ 12V Max Load: 1A (have better Load less than 700mA) Quiescent Current: 5mA Relay Working Current: 20-30mA Working Mode: Momentary Toggle Latched Adjustable Encoding Type: Learning Dot to add Transmitter Color: Black Transmitter Dimension: 5.0x4.0x1.0cm/ 1.97x1.57x0.39in Cable Length: 12.5cm/ 4.92in Quantity: 1 Set Note: 1.No retail package. 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 Pc x Receiver 1 Pc x Transmitter