Amazon Boxes
Two freshly delivered Amazon boxes are seen on a counter in Golden, Colorado. Reuters/Rick Wilking

Amazon is hosting its third annual Amazon Prime Day on Tuesday, July 11. The massive sale event will last 30 hours and begin a late Monday night. Customers in 13 countries around the world will be able to take part and score some pretty awesome deals.

New deals will be added as quickly as every five minutes so it’s difficult to know what exactly will be on sale, but Amazon assures there will be hundred of thousands of deals and millions of items in stock to fulfill the orders of Prime members. The sale is only open to those with a Prime membership, which costs $99 per year, or users can sign up for a free 30-day trial to gain access to the sales.

Read: Amazon Prime: 9 Perks You Didn't Know You Got With Your Membership

While a full list of the the deals that will be happening on the big day hasn’t been released, we can take a few guesses about what sales might go live on the day of. Some deals began Thursday when the official Prime announcement was made. In the days preceding Prime Day, Prime members can try Prime Music Unlimited for four months at just $.99 per month. They can also save up to 40 percent on a Kindle Unlimited subscription and Audible subscription. And they can get $10 to use any Amazon purchase before or on prime day when they stream a Prime video on their TV for the first time.

In addition to these deals leading up to the day itself, Amazon teased a few of the product categories that would see some slashed prices, like the Amazon Echo products, Kindle products, cell phones, clothing, home goods and more.

Amazon original products:

During the previous two sales Amazon has dramatically dropped the price of its original products. The Amazon Kindle Fire is a steal, last year the Fire, originally priced at $49.99, was on sale for just $33.33. Last year the Kindle paperwhite was also on sale at $30 less than its usual price of $119.99. Discounts to the Amazon Echo products and Fire TV are expected as well.

TVs:

Last year there were television discounts across multiple brands and more are expected this year. There will definitely be TV deals but Amazon warned that they will “likely sell out,” in a press release. Last year the 32-inch 720p Roku Smart TV was just $119.99, a $40 discount, and the Samsung 55-inch 4K Ultra HD Smart TV was on sale for $549.99, down from the usual $819. The deals this year will probably be just as good but you’ll have to buy quick before they sell out.

Cell Phones:

Several cell phones will be offered at exclusive Prime Day discounts on Amazon. The Nokia 6 will be on sale for $179.99, a $50 discount, and the Moto E4 will be on sale for $99.99, a $30 discount. To see a longer list of cell phones that will be on sale click here.

Read: Amazon Prime Exclusive Phones, Including Nokia 6 Start Retailing July 10: Prices, Availability And The Caveat

Toys:

Amazon Prime Day is a big one for toy brands like Nerf and Barbie. Last year the discounts were up to 50 percent off of some items. Like the Barbie Glam Getaway House that was on sale for $17.49 that was 50 percent off, and the Fisher Price Laugh & Learn Smart Stages Home Play Set that was $51.99.

Clothes and shoes:

There were major discounts on clothes and shoes last year and hopefully more this year. Women’s New Balance sneakers that usually cost $64.95 were on sale for just $22.75. And other clothing, shoes and jewelry were heavily discounted as well.