Gone are the days of cassettes, in fact most people don’t even remember then. Sony has actually even slashed its cassette player walkman. The iMainGo X portable speaker is a great reminder of the glory days of cassettes. It is also a a PMP enclosure, with a clear back that still allows for access to on-unit controls. It’s definitely a unique speaker. This packages comes with a rechargeable lithium-ion battery, an internal speaker, a 3.5 millimeter auxiliary input and the ability to daisy-chain with other X devices. The sound is pretty decent as well. It will set you back by $70. You can also expect a travel bag, wrist strap and carrying case.