Following on the heels of their monumentally successful ES100 Bluetooth Receiver, Radsone has finally announced the HE100, a earphone retailing for a tasty $89.  Claiming to offer the same hi-res sound that catapulted the ES100 to superstar status, the HE100 talks a big game.  But how does it stack up to other earphones at the highly-competitive $90-ish price point?
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https://majorhifi.com/radsone-earstudio-he100-review/