+ The switch is really very small and flat, he gave along with some cables and the Bakelite in a normal flush-mounted socket.
+ A small LED indicates whether it is transmitting.
+ The terminals are reasonable, appropriate cable for connection to two switches are included.
- Obviously not work simultaneously on both circuits switches (more on that later).
- For battery replacement you have to remove the whole switch (and do not know how that should work differently).
- The radio transmitter can not really make sense to control the same receiver with other stations. The background is that he always has a "On" or "Off" command sends, depending on whether the circuit at the input of "closed" to "open" or "open" to "closed" switches. If a lighted lamp turned off with another transmitter transmits the radio switch on pressing the light switch again "from", which does not change the receiver, it happened seemingly nothing. Until the next press the switch, the light then passes again. A kind of "two-way circuit" therefore does not make sense possible.
- The last negative point is added a special problem, for me, makes the switch, however useless, I explain the hereafter.
The only Bakelite I could get, which can turn a so-called independent series switch two consumers, was a rotary switch series. This switches with each rotational movement between the states "Both from" - "one on, two-out" - "Both on" - "One out, two on" and so on. I can not explain exactly why, but the operation with this switch did not succeed, even though the switch easily worked per se and also the radio station itself. Possibly it is because are conditionally linked by the construction in a switch position, the two "consumer". Anyway, I am not able to produce an independent circuit with this combination.
Conclusions: The radio station certainly makes sense and Twin is good when with two toggle switches (and only these) two consumers are to be controlled. For use with rotary switches series, he seems to me to be inappropriate.