How are Goten and Trunks sensing Gohan and co. here?

[GSM123]

[/spoiler]

This happens right after the Budokai ends. How are Goten and Trunks sensing the others? Mind you Gohan and Dabra were fighting on the Demon Realm when this happened.

 

[Captain Cadaver]

Babidi's Paparapapa likely only makes a replica of the location rather than actually transporting them there, considering neither Zoon nor the Makai had any of it's inhabitants around. It's not as if the ship moved from it's position, after all, nor was their any mention of the sensory abilities of those inside being sealed off from the outside iirc.

 

[Papasmurf]

Babidis paparapa physically brought them to the Budokai and the wasteland Majin Vegeta and Galu fought in though.

 

[GSM123]

Babidi's Paparapapa likely only makes a replica of the location rather than actually transporting them there, considering neither Zoon nor the Makai had any of it's inhabitants around. It's not as if the ship moved from it's position, after all, nor was their any mention of the sensory abilities of those inside being sealed off from the outside iirc.

Well, Dabra did need the Kili Meter to sense SSJ Goku on Yakon's planet despite sensing everyone's Ki a couple chapters earlier...

 

[Captain Cadaver]

Well, Dabra did need the Kili Meter to sense SSJ Goku on Yakon's planet despite sensing everyone's Ki a couple chapters earlier...

I concede that they're indeed transported to the location, given Babidi's comments on not wanting the ship damaged in the Goku VS Yakon fight, though I'd say the situation with Dabura would lend credence to the idea he can't sense Ki, given his unwarranted confidence against Gohan just prior to Boo's awakening.

It could very well be that Babidi only changed the battlefield prior to the kids setting off. After all, we never saw at what point Babidi changed the battlefield manga-wise. It could also be that Toriyama didn't want to detract from the main plot and the kids set off at the point where Dabura put the battle on hold.