shapely slim remote control

So I turn the heating almost any problem. From time to time it happens that switching commands are not transferred correctly. I suspect it is related to the DECT phones?!? Because the Gigaset phone sometimes acknowledged the switching signal with a beep.
I bypassed the problem by repeatedly programming of switching times. Just a minute delay, the same device on again or off and let it set the two devices a little further apart. I agree with Mr ste532 right, you'll actually use more than one device only cumbersome. Because the further problem also with arrow keys until the unit (Unit in the display) must be selected with difficulty. Of course, this only applies to the manual shift function. That goes better with other remote controls.
Well done is double the battery, a switching signal for display and button cells and for the clock and switching time storage. Thus, the battery can be replaced without major reprogramming.