[bam80]

I found the MX3 went to sleep after 20 seconds then when I tried to use it the cursor woke up and it did not operate as I expected it to making it unusable, I did not realise at the time that the MX3 transmitted an incorrect code until you reported it, that would contribute to making the MX3 more difficult to use :-)

With the T3 as stated above I do not know it goes to sleep, it operates like I expect it to and like any other remote I have ever used. There is no delay, you press the key and the receiving box responds immediately. Even after not touching the remote for 15 - 30 minutes

Thanks Jeffers24,
well, T3 manual states about 20 secs to sleep also, so maybe the problem was solved indeed.
There is one enother case - your remotes doesn't go to sleep at all - then, it'll drain your battery very quickly Hope it won't though