Neje lazer question

[Talltim]

I am looking at getting the NEJE 1500 Lazer.

What do all of the letters after the name mean? Almost every seller list different letters.

NEJE DK 8 JZ

NEJE DK - BL

NEJE DK 8 fkz

Etc. Etc.

 

[Dale Allen]

I believe they may all be the same. The BL is probably the bluetooth version.
Mine is the BL and I got it from Amazon. Also, it has only one plug whereas older versions has 2.