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This one claims to have upgradeable firmware, built in FM and speaker and what's this, supports LRC V0.2 format!! for $60!!

Quite neat but most of them claim to have upgradable firmware. You just never get the upgrades unfortunately. Part of the firmware for these things are usually stored on the flash which is why you're not supposed to reformat them normally. You have to use their special utility which puts that bit of the firmware back when it's done.