Many good reviews but Amazon's shopping experience is a little confusing trying to figure out which models have the manual switch or timer. Amazon should show the correct picture with each model so the customer can see what they are purchasing.
1) The "Easy-Comfort Switch" models might say Standard or Classic/Plus. These have the manual on/off switch and doesn't have a timer, and is packaged in red boxes. The switch works by holding it down. Press the switch and the pad gets hot, quickly.
2) The MaxHEAT/Plus models come with the "One-Touch Switch" which means it has the 20 minute timer, and is packaged in black boxes.
Thermophore is made by (Battle Creek) Equipment.