iFi Hip-dac2 - Portable Balanced DAC Headphone Amplifier for Android, iPhone with USB Input Only/Outputs:
Amazon.com: USB C DAC - Portable 32 Bit/384kHz Dosmix Headphone Amplifier, HiFi Converter, Qualcomm chipset, Impedance 600Ω, SNR123dB, Premium Sound Enhancer for Android/Windows/MacOSX System Smartphone Laptop : Electronics
Amazon.com: Audioengine DAC3 32 bit Portable Headphone Amplifier and DAC | 3.5mm Headphone Out | MQA PCM DSD Hi-Res Audio Support, USB-C Input for Windows/Android/iOS/MacOS : Electronics
Amazon.com: iFi Hip-dac Portable Balanced DAC Headphone Amplifier for Android, iPhone with USB Input Only/Outputs: 3.5mm Unbalanced / 4.4mm Balanced (Unit only) : Electronics
iFi Hip-dac2 - Portable Balanced DAC Headphone Amplifier for Android, iPhone with USB Input Only/Outputs: 3.5mm Unbalanced / 4.4mm Balanced – MQA Decoder
Amazon.com: Audiolab Portable Headphone Amplifier Audio Powered USB DAC Headphone Amp for Phone (Android,USB-C Port) : Electronics
The 3 Best Portable Headphone Amps With Built-In DAC of 2023 | Reviews by Wirecutter
Amazon.com: Audiolab Portable Headphone Amplifier Audio Powered USB DAC Headphone Amp for Phone (Android,USB-C Port) : Electronics
Amazon.com: Audioengine DAC3 32 bit Portable Headphone Amplifier and DAC | 3.5mm Headphone Out | MQA PCM DSD Hi-Res Audio Support, USB-C Input for Windows/Android/iOS/MacOS : Electronics
Amazon.com: iFi Hip-dac Portable Balanced DAC Headphone Amplifier for Android, iPhone with USB Input Only/Outputs: 3.5mm Unbalanced / 4.4mm Balanced (Unit only) : Electronics
Amazon.com: iFi Hip-dac Portable Balanced DAC Headphone Amplifier for Android, iPhone with USB Input Only/Outputs: 3.5mm Unbalanced / 4.4mm Balanced (Unit only) : Electronics
Amazon.com: Geekria SJC01 Portable Headphone Amplifier/DAC/AMP with USB and Type-C Input, 3.5mm Audio Jack Output, Compatible with 384K/32Bit Hi-Res APPL Music Lossless Audio, PC, Laptop, Android Phones : Electronics
iFi Hip-dac2 - Portable Balanced DAC Headphone Amplifier for Android, iPhone with USB Input Only/Outputs: 3.5mm Unbalanced / 4.4mm Balanced – MQA Decoder
Amazon.com: iFi Hip-dac Portable Balanced DAC Headphone Amplifier for Android, iPhone with USB Input Only/Outputs: 3.5mm Unbalanced / 4.4mm Balanced (Unit only) : Electronics
Amazon.com: FiiO K5Pro Amplifier Headphone Amps Stereo High Resolution Portable Desktop DAC 768K/32Bit and Native DSD512 for Home Audio/PC 6.35mm Headphone Out/RCA Line-Out/Coaxial/Optical Inputs (K5PRO ESS) : Electronics
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
Amazon.com: USB C DAC - Portable 32 Bit/384kHz Dosmix Headphone Amplifier, HiFi Converter, Qualcomm chipset, Impedance 600Ω, SNR123dB, Premium Sound Enhancer for Android/Windows/MacOSX System Smartphone Laptop : Electronics