With more USB ports, you are able to connect more devices.
JBL Boombox: 2
Braven 850: 7mm
17. has USB mass storage support
It can transfer files, music, photos via USB, no need to install additional software.
12% have it
18. has AirPlay
AirPlay allows wireless connection of Apple devices with external screens or speakers. You may stream computer screen, video and music from iOS devices, play games like on consoles or present your slideshows easily on your TV.
14% have it
19. Is DLNA certified
All DLNA certified products are compatible with one another. When different devices are connected to the same network, data can be transferred easily between them.