When it comes to the dog-eat-dog world of consumer electronics, imitation isn't exactly the sincerest form of flattery, but it's certainly part of the business.
Take Logitech's X300. While it may not have the same design as JBL's popular Flip and Flip II Bluetooth speakers, the speakers could be cousins. (The same goes for the respective step-down models, the Logitech X100 and the JBL Clip.)
Like the Flip II, the X300 ($60 US, £60 UK, Australian pricing and availability not yet confirmed or announced) is a mini wireless speaker with built-in speakerphone capabilities that comes in a few different colors and can be laid down horizontally or propped up vertically. It has two drivers along with a passive subwoofer, and Logitech says the way the drivers are angled gives the speaker a more expansive sound spectrum.
The X300 and the Flip II share a similar sound profile, offering a reasonable amount of bass and decent clarity for a Bluetooth speaker this size. They're relatively well balanced and avoid managing to sound harsh with most material (as with all these little Bluetooth speakers, they sound better with some tracks than others).