The receiver integrating the ESC, the management of the dels with mixing for the indicator of change of direction, braking and reversing lights as well as the management and the amplifier of the sound part in a single small box of very qualitative appearance with well thought out and reliable connectors is really impeccable.
the welding work on the tiny dels requires a very good soldering iron with a very fine blade, a lot of precision and patience. but the result is worth it.
on the other hand the emitter with a low-end aspect:
the perceived quality of the plastic and the precision of the assembly
unsatisfactory. the gas control trigger and its mechanism seems fragile.
It's all the more unfortunate that the desing of this emitter