1. Can copy most common fixed codes such as 2262, learning codes such as 1527 and rolling codes such as HC301, and some non-standard encrypted remote controls. 2. More than 16 kinds of frequencies are supported, and the frequencies of 300-915Mhz can be copied. 3. One remote controller can copy 20 groups of remote controllers, and can store 20 data in total. 4. High-quality chip with storage function can be recovered even if the code is not carefully cleared, and data will not be lost when the battery is replaced. Note: It's not possible to copy all the brands of remote control in the world, especially those encryption chip. Please do not copy the remote control of motor bikes or cars. 20-channel multi-frequency copy remote controller Receiving frequency: 300~915MHZ Transmit power: 13dBm Operating voltage: 3.7V Operating current: 30MA Remote control distance: 30-50m Charging interface: 5V type-C Operations: 1. Clear code first: Choose the channel by "+" "-" buttons, press the first and second button (△□) at the same time and wait 2 seconds. The light should flash quickly and constantly, show a sign of "--", the code is cleared. Color: Silver Material: ABS Package Contents: 2 x Garage door remote control Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.