Except it is not waterproof. Mine started taking on water (visible at the screen) almost right away and now it is completely dead. Very disapointed!
Even added silicone around the screen because I was afraid of water intrusion since other people wrote about it but water must have gotten in somewhere else.
What is the warranty on the remotes?
Definitely not waterproof.
I also had issues where the receiver would freeze on high throttle. I have now gone to the Flipsky V3 and it is brilliant.
Maytech don’t have any warranty and will not replace anything.
So, you recognised there was a problem and you have attempted to fix it. Did you replace / refund all those who bought the previous version which had the problem?
Wow getting stuck at full throttle is even worse! So dangerous!
Gonna order a flipsky v3 right away!
What are the dimensions of Maytech receiver?
Please help me. I need it for modeling…
What is that large part ? Looks like a relay…
This is the pump relay.
Unfortunately both my receivers are filled with silicone, but you can estimate the dimensions by this model. Maytech remote control receiver box by strepod - Thingiverse
Models - Great idea! 
Pump relay, great - I can remove it…