What "BT" means in "15 WXGA, BT" Lenovo

[ymemuser]

BT - ???
Thanks

MOD EDIT: Duplicate thread.

[Troels]

Bluetooth.
It's because there are two different screen lid assemblies (two for each screen dimension), since the bluetooth module is situated between the left hinge and the lcd cable entry. Those that do not have BT / Bluetooth does not have the bluetooth module, and there might not be a place to screw it in, if the hole for the screw is left out.
Either that, of the 15 WXGA BT just indicated that the LCD lid assembly / upper part of the laptop contains the BT module.