handset

/ˈhæn(d)sɛt/

Etymology

From hand + set.

noun

The part of a landline telephone containing both receiver and transmitter (and sometimes dial), held in the hand.“Helen hears the click of the handset at the other end of the line.”
A mobile phone.“Similarly, the handset can see more than one base station. Because the positions (longitude and latitude) of the base stations/Node Bs are known, then either a Node B or handset can work out the handset’s position.”
A hand-held device for remote control of a piece of equipment.“The locomotives can be driven from two positions in the cab or remotely from a radio control handset.”