Case has less battery life
If you know Razer, you know that the company s pedigree has always been in gaming peripherals, with headphones being part of that lineup. Earbuds were also a thing for the company, though true wireless earbuds were a different animal altogether. The main reason why was because of latency and connection stability. Those are still major considerations for both of these models, but the differences between them are about the various elements related to design, features, and performance.
Razer Hammerhead True Wireless Pro vs. Hammerhead True Wireless
More than meets the eye
Source: Android Central / Russell Holly