Group 1 - Amazon is negotiating with mobile carriers to offer low-cost or free mobile phone services to its Prime members in the U.S. [1] - Major U.S. carriers AT&T, Verizon, and T-Mobile saw their stocks drop over 5% following the news of Amazon's negotiations [1] - The negotiations have been ongoing for 6 to 8 weeks, with Amazon aiming for a wholesale price that would allow it to offer services at $10 per month or for free [1] Group 2 - Since Amazon raised the annual fee for Prime membership from $119 to $139, the number of Prime members has stagnated, indicating a decline in the service's attractiveness amid high inflation [2] - As of March 2023, approximately 167 million Amazon shoppers hold Prime membership, unchanged from the previous year [2] - Competitor Walmart offers a similar membership, "Walmart+", at $98 per year, with a lower free shipping threshold of $35 compared to Amazon's increased threshold of $150 [2]