![[Review]Surprisingly thin and with plenty of driving force. I tried using NiPO’s DAC amplifier “COCOM1” fixed to my smartphone](https://av.watch.impress.co.jp/img/avw/list/2149/351/DSC08473.jpg "[Review]Surprisingly thin and with plenty of driving force. I tried using NiPO’s DAC amplifier “COCOM1” fixed to my smartphone")
[Review]Surprisingly thin and with plenty of driving force. I tried using NiPO’s DAC amplifier “COCOM1” fixed to my smartphone
I want to easily use wired earphones/headphones with good sound on my smartphone. When listening to music on your smartphone,…