The 3 Best Portable Headphone Amps With Built-In DAC of 2023 | Reviews by Wirecutter
Amazon.co.jp: Helm Audio Bolt DAC/AMP, USB-C Portable High Performance DAC/Headphone Amplifier Support MQA Playback Mobile Studio Sound USB-C to 3.5mm Audio Cable for Android, IOS and PC, THX Certified Black : Electronics