I have a General Electric model 19428 Battery Operated Designer Wireless Door Chime for sale. Along with the main unit, it comes with two model 19249 Wireless Push Buttons, one of which is still in sealed packaging.
The main unit comes with mounting hardware and full instructions and is in very good condition. It requires three "C" size alkaline batteries. It measures 5" wide by 3-3/4" high by 2" deep.
The one Wireless Push Button is also in very good condition and comes with mounting hardware, full instructions and a fresh CR2032 Lithium button cell battery (installed). And as mentioned previously, the second Wireless Push Button is brand new in sealed packaging. The Wireless Push Buttons each measure 3-1/2" long by 1-1/8" wide by 3/4" deep.
The main unit has four selectable volume settings and you can choose from eight different chimes via a switch inside each Wireless Push Button. The selectable chimes, in order, are as follows: