Plug in Bluetooth Receiver

I’m using a couple of ESP32 boards with ESPHome to read data from Bluetooth thermometers around my house. I’m looking for something that is a little nicer to plug in a wall socket other than a USB power plug with an ESP32 board tethered to it with a short cable. Is there something else available in a compact size that I can use instead?

Like a stamp maybe? :framed_picture: