xDuoo XP-2 BAL HD Bluetooth USB DAC & Balanced Headphone Amplifier With Mic — HiFiGo
Mini Portable Dsd1796 Dac Xmos U8 Asynchronous Usb Dac 32bit 384k Usb Dsd1796 Dac Headphone Amplifier Sound Card 0.1ppm Txco - Headphone Amplifier - AliExpress
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iFi Audio GO Bar Portable USB DAC & Headphone Amplifier – Headphones.com
Amazon.com: HELM Audio Bolt DAC/AMP, USB-C Portable High-End DAC/Headphone Amplifier with MQA Playback. Mobile Studio Sound for Android, iOS and PC. USB-C to 3.5mm Audio, THX Certified : Electronics
FiiO USB Type-C DAC and Headphone Amplifier E10K-TC B&H Photo