UPDATE3*
Hey Guys, I been out for a while so I apologize for not answering everyone's messages! I also appreciate everyone else who has been responding and helping each other out with this one! I cant answer all these questions by myself so I really appreciate it!
Once again, there is also a comment section on the main ezflash omega product page, and suggest you guys to go check that out for questions and info from other real people. the Ezflash team is taking their time to respond to everyone's messages, which is really awesome imo. Here is the link again!
http://www.ezflash.cn/product/omega/
UPDATE2*
A lot of people are curious on the battery life. I would love to answer for you but I have a built in battery pack in my gba. I am getting about 4 -5 hours in comparison to my usual 5-7 hours. I know this isn't truly helpful for most of you, so I would suggest messaging the comments section at the bottom of the EZ flash Omega product page.
http://www.ezflash.cn/product/omega/
UPDATE*
IGNORE WHAT I SAID ABOUT THE GBC BACKGROUND IMAGES. IT IS NOT TRUE! I've learnt that some GBC roms just have backgrounds built in to work with the GBC Player for the SNES. The GBC emulator built into this flashcart allows for you to enable those borders/backgrounds.
DISCLAIMER*
This is not a promotional video for the EZ Flash Omega.
I am also NOT tech-savvy when it comes to the internal work of Flashcarts, or GBA Modding.
Here is my first impression video of the new EZ Flash Omega for the Gameboy Advance, Nintendo DS, and Nintendo DS lite. It is not a Review, just a video to show you guys some of the features, in case you want to check it out before deciding your purchase.
EZ Flash Omega URL
http://www.ezflash.cn/product/omega/
Retro Modding
https://www.retromodding.com/