Codec-Adaptive Wireless Relay

Hello…

I bought 4 units of Codec-Adaptive Wireless Relay.

I bought a 433MHZ common control, the wireless relay works, but only works when I press the close control of the antenna… All four have the same behavior.

I’d like this to work at a distance of 5 or 10 meters… Is it possible?!

Would I need to buy control of Seeedstudio?