LOS ANGELES (CBSLA) – As the competition over delivery time ramps up between retailers, Amazon announced Monday that it has expanded its one-day free delivery for Prime members on more than 10 million products.

According to the e-commerce giant, there is no minimum purchase amount to receive Prime Free One Day.

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Currently, Prime members get a two-day free shipping guarantee for all products.

As it tries to create a reliable infrastructure to support next-day delivery, Amazon announced in May that it offering its employees money to quit their jobs and start up their own package delivery businesses.

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Amazon said it will provide employees up to $10,000 for startup costs to build their own package delivery businesses. Along with the $10,000, employees will also receive a payment equal to three months’ worth of their gross salary.

This comes as Walmart, one of Amazon’s major competitors in the space, rolled out its own next-day delivery service last month in Phoenix, Las Vegas and Southern California. It is available for 220,000 items and applies for order of over $35. However, unlike Prime, it does not require a membership.

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Amazon Prime costs $12.99 per month or $119 per year.