Via CNSNews.com

Wal-Mart Stores Inc. will test a new unlimited shipping service for online shoppers this summer that will be priced below Amazon’s $99 per year Prime service.

Wal-Mart, the world’s largest retailer, told The Associated Press on Wednesday that the shipping subscription service will cost customers $50 a year. Products will arrive in three days or less.

Wal-Mart offers a grocery delivery and pickup service in five markets. But the unlimited shipping program marks a substantial commitment and underscores how serious the retailer is about accelerating the growth of its online business, which has seen a slowdown.