Question I need a cheap monitor for 50 USD ( Must be new )

You Gotta be kidding me right? how about you open a Google browser and go search for yourself? You won’t find anything for that price
 
This one does....
AOC Pro-line 24P1 (24P1) - 23,8 Zoll, Full HD (1920 x 1080) 139€

many monitors now only have outlet for headphones as the market wants small, compact framesaroun the screen. You can always get a small external speaker for very little and connect it, would give you much better sound in anycase.
 
Well with speakers they are more expensive.... more tech and components.....
This has no speakers but..... you could attach this for ok sound
N CSPR10020BK Lautsprecher, PC/Laptop, Stereo, 3,5-mm-Buchse
9,95€


AOC E970Swn 65€

under 80€ a decent monitor with ok sound.

All prices are in € as I am in Germany, you will have to see what is available in your region and prices may differ greatly. Hard to find a decent 1080p monitor with speakers for under 150€.
 
Well eBay may be your best friend in this case your not really gonna be able to get a new monitor for so cheap. You might even be able to get a decently higher end older monitor on eBay for 50$