HDMI cables - High Definition Multimedia Interface. It is the most commonly used HD signal for the transferring of both high-definition audio and video through a single cable, from one device to another.
Power extension cables - An extension cord (US), power extender, drop cord, or extension lead (UK) is a length of flexible electrical power cable (flex) with a plug on one end and one or more sockets on the other end
Specifications of the cables being brought by the technician differs in the availability of the product