Best Portable Headphone Amplifiers

CXLWZ Electric Guitar Amp 20 Watt Amplifier Portable Amp with Headphone Input Gain Powe Including Professional Noise Reduction Cable （Orange）

Questyle M15i Headphone Amplifier [MFi Certified] Portable USB DAC Amps with 4.4mm and 3.5mm Dual Outputs Supports PCM 768kHz/DSD512 High Resolution Lossless for Smartphones/PC/Laptops

Donner Bass Guitar Headphone Amp Basement USB Rechargeable Mini Portable Bass Headphone Amplifier for Bass Guitar

iFi Hip-dac2 - Portable Balanced DAC Headphone Amplifier for Android, iPhone with USB Input Only/Outputs: 3.5mm Unbalanced / 4.4mm Balanced – MQA Decoder

FiiO BTR15 Headphone Amps Bluetooth 5.1 Receiver High Resolution 384K/32Bit Native DSD256 USB DAC Supports LDAC/aptX HD/MQA for Smartphones/PC/Car/Home Audio (Titanium)

HiBy FC4 Headphone Amplifier Portable DAC with 4.4mm and 3.5mm Headphones Outputs Support MQA16X PCM768K DSD256 High Driving Power for Android/iOS/Mac/Windows

Neoteck Portable 3.5mm Headphone Amplifier Two-Stage Gain Switch, 16-150 Ohm, Aluminum Matte Surface

FiiO Q3 Headphone Amps Amplifier Portable High Resolution DAC DSD512 for Smartphones/PC/Laptop/Home/Car Audio Compatible with iOS/Android 2.5/3.5/4.4mm Output (Q3-MQA)

Fosi Audio SK01 Headphone Amplifier Equalizer Preamp with Bass Midrange Treble Tone Control and Loudness Compensation Portable Class A Analog Amp for Electric Guitar Instrument with 3.5mm 6.35mm Jacks

KHADAS Tea Portable Headphone Amplifier,DAC Magnetic Amplifier Bluetooth 5.0 HiFi Hi-Res USB DAC 32bit/384KHz, 1160mAh Battery ESS ES9281AC Pro Qualcomm QCC5125 LDAC/aptX HD, PCM, DSD, MQA(Grey)