QUICK TAKE: Small Wonder! – the amazing Radsone ES100 EarStudio Bluetooth Receiver

Every time I power up my tiny Radsone ES100, I am astonished: Astonished that it turns nearly any wired pair of earphones into wireless Bluetooth earphones, and does so with vastly improved (rather than degraded) sound quality, at least as compared to your smartphone Astonished that it retails for only US $99 (but you can … More QUICK TAKE: Small Wonder! – the amazing Radsone ES100 EarStudio Bluetooth Receiver