"Dickert Mini 433 MHz AM KeeLoq dual-channel handheld transmitter".
Dickert mini 433 MHz AM KeeLoq 2-channel handheld transmitter The Dickert handheld transmitter, also called radio transmitter, door opener or garage door opener, for opening the door using the door opener (garage door opener).

This Dickert handheld transmitter is sold/sold by many companies, sometimes under different product names.
Button colors often vary, but have no effect on function.

Check the frequency printed on the back.
Size: 50 x 24 x 12
Outdoor range in m: 100 m in open terrain
Manufacturer.
Temperature range: -20 °C to +70 °C
Frequency: 433.92 MHz AM
Battery: 1x 3V (CR2032 type)
Coding: KeeLog
Channels: 2
S5Q-433A2K003