To say that BackBeat GO 2 has a lot in common with BlueBuds X would be an understatement: these could easily be products from the same company, apart from cosmetic and pack-in differences. Both all-plastic models are shaped like slightly oversized in-ear canalphones, using rubber for both interconnecting flat cables and interchangeable ear tips. The cabling is an inch longer on BackBeat GO 2, running 25 inches from end to end, more than enough wiring…