Weird is a PT2399 delay with the time parameter being controlled by your input audio signal.
The new and improved V.2 has a 3.5mm (mono) jack mounted on the top that will break the original audio signal from affecting the delay. This is to make it so you can use another audio source to manipulate the delay of the original audio for maximum experimentation.
Weird also uses a unique bypass switching system that I call "Triple Bypass", where you have three different "modes" for turning the pedal on and off:
Short Press: Works like any regular pedal. Press to turn it on and then press to turn it off.
Momentary/Hold: If you press and hold for about 1-2 seconds the pedal will enter a hold mode. Here it will simply stay in the state it entered when pressing down the button, for however long you decide to hold down the button, and then return when you release the button.
So if you press down when the pedal is turned OFF it will stay ON for as long as you hold the button pressed down, and vice versa.
Tap Tempo Bypass: If you quickly double tap the bypass button (either when on or off) the pedal will enter the "Tap Tempo Bypass" mode. Here the pedal automatically turns itself on/off in whichever tempo you tap. So to change tempo you simply tap a new tempo.
It continuously counts time since your last tap. So if you have been in a tempo for some time and just tap a single tap, it will count the time between this tap and the last tap in previous tempo as your new tempo. With a max lenght of around 1min.
To exit "tap tempo bypass" you simply press and hold the button for about 1-2 seconds. Note that when exiting this mode the pedal will be ON (regardless if you exit in a OFF or ON state).