Bluetooth can transmit videos, but synchronization is basically impossible. However, you can consider using DNLA technology to achieve synchronous video playback.

The current Bluetooth 4.0 supports transmission up to 3M/bps. Synchronous video transmission is almost impossible.

But 2.4G WiFi is much faster, and 300M/bps is no pressure. The next generation is said to be able to reach 1G/bps.

Extended information:

The full name of DLNA is DIGITAL LIVING NETWORK ALLIANCE (Digital Living Network Alliance), which was initiated and established by Sony, Intel, Microsoft, etc. to solve the problem of personal computers and consumer appliances. , the interconnection of wireless networks and wired networks, including mobile devices, makes the unlimited sharing and growth of digital media and content services possible. Currently, there are more than 280 member companies.

DLNA does not create technology, but forms a solution and a specification that everyone can abide by. Therefore, the various technologies and protocols it chooses are currently widely used technologies and protocols.

DLNA specifies its entire application into five functional components. From bottom to top they are: network interconnection, network protocols, media transmission, device discovery control and management, and media formats.