This is mount used for ZigBee Wifi MmWave Human Presence Motion Sensor With Luminance/Distance Detection (WZ-M100-C) on my shelf. I use double side tape to mount it on the cabinet.

There is a USB version of this detector but this version have use 110/220V and you don't need extra charger.

https://www.aliexpress.com/i/3256804518651916.html