TOPPING L30II NFCA Linear Headphone Amp - 6.35mm Jack 3.5mm Adaptor RCA Input and Output 37Vpp high Output Voltage Mini HiFi Amp Audio Hi-Res Preamplifier (Black)

RuiPuo Portable Headphone Amplifier, 3.5mm Stereo Audio in/Out Support Volume Control with GAIN Switch for Switch/PS4/PS5/Mobile Phone/PC/MP3/MP4 /HD 650 Headphones ect.

eSynic 16-150Ω Headphone Amplifier Poratble- HiFi 3.5MM Audio Headphone Amp Rechargeable with 2-Stage Gain Switch-Aluminum Alloy Body & 12H Playtime for Car/MP3&4/Phone/PC/Laptop (3.5mm AUX)

Lake People G111 MK II Headphone Amplifier for Recording and Livesound, Black

ZVGMOOE USB-C to 3.5mm Audio Adapter, Dual Chip CX31993 & MAX97220 DAC with HiFi Amplifier, 8-Strand 4N Silver-Plated Cable, Universal Compatibility for Android/iPhone/PC/Mac (Includes USB-A Adapter)

AudioQuest Dragonfly Black USB Digital-to-Analog Converter

YGiTK 16-300Ω Headphone Amplifier Portable - HiFi 3.5MM Rechargeable Headphone Amp with 2-Stage Gain Switch,Volume Knob, Aluminum Frosted Surface, Compatible with Phone, iPad, PC, PS4/5,MP3/4 Players

S.M.S.L DS100 USB MQA DAC with CS43131 Chip 6.35mm & 4.4mm Headphone Amplifier Support MQA MQA-CD XMOS XU-316 32bit/768kHz DSD256 USB/Optical/Coaxial Input Mini USB DAC

ZOOAUX PRO Headphone Amplifier, Portable Hi-Res Audio Amp with 4.4mm & 3.5mm Outputs, PCM 768kHz/DSD256 Support, Volume Control for Android, iOS, Mac & Windows

FiiO JadeAudio KA1 Headphone Amps Tiny Amplifier USB DAC High Resolution Lossless for Smartphones/PC/Laptop/Players(Lightning, Black)