No, you can install Wyze Video Doorbell v2 yourself.
A technician is not required to install Wyze Video Doorbell v2 or the included Wyze Doorbell Chime Controller. As long as you can turn off power at the electrical panel, you'll be set to connect the wires.
Important: If you do not have an existing in-house chime or you are unsure of wiring, stop. Contact your local, licensed electrician for assistance.