Neoteck HiFi Headphone Amplifier 3.5 mm AUX Cable Gain & Bluetooth 5.0 Receiver
【HiFi Headphone Amplifier 】. It supports most headphones of high impedance 16-300Ω, 3.5mm AUX Input and Output, signal-to-noise ratio> 100Db, THD + N = 0.0003%, fully filter noise, enjoy high-quality audio.