Its a nice little low cost remote control for a smart lightbulb, once you have worked out the instructions its very easy to pair the switch to the bulb, then its easy to turn on and off.
It works with Hue bulbs using the Zigbee protocol so will work with other makes of smart bulbs.
The downside :(
Its only marketed as Osram but its made / owned by another company so no support from Osram.
The user guide included is one of the worst ever, you follow some small pictures to see how to pair it, thats your lot, there are no other instructions or information on how to use it with other Zigbee devices.
The technical support replies after about 3 days and just said follow the user pamphlet.
If you do use it with your Hue bulbs then the Hue bulb then loses the connection to the Hue hub so you lose any remote functions from Alexa, Hive app or the Hue app.
So if you are looking for something to go with your Hue / Alexa smart home network then forget it.
Mine has ended up in the draw and I doubt i will ever use it as its incompatible with my smart home devices.