YMOO Portable Headphone Amplifier 16-600Ω/300mW, DSD512 768KHz/32Bit PCM, USB DAC AMP 3.5mm/4.4mm/Optical/Coaxial Output for PC/Smartphone/Home Audio, Windows/Android/IOS Compatible

YMOO Portable Headphone Amp DAC, DSD512 and 768K/32Bit, 16Ω-600Ω/35mW/Hi-Res Hi-Fi Desktop DAC for PC Headphone Out/iPhone, 3.5mm/4.4 mm/Optical/Coaxial Output for Windows/Android/IOS/PS5/Home Audio

Sennheiser Consumer Audio HD 650 - Audiophile Hi-Res Open Back Dynamic Headphone, Titan

TOSLINK Cable, Optical Audio Cable – 6 feet Short Fiber Optic Cable for soundbars (TOSLINK to TOSLINK, Digital S/PDIF Cable, Stereo Systems/amplifiers/amps, Home Cinema, Xbox One/PS4) – CableDirect