Aleols

Well, i bought this brand new Silverlit Gyrator helicopter... but the transmitter doesn't work! I've tried to insert lots of different types of 9V batteries, but it just wont start. When i set the transmitter to on, the lights last for like 1-2 seconds, but turns off right afterwords.

I've tried to tighten the antenna, take it off, take it back on... Starting the transmitter after and before i turn on the helicopter... Start it in different channel-modes (the helicopter uses 27 mhz - Channel B)... Start it in Expert and new beginnersmode, but it just wont work! It just turns off!

Any ideas what i can do? / What the problem is?

Thankyou