【HiFi Headphone Amplifier】 This HiFi headphone amplifier 3.5mm AUX input and output, supported impedance up to 150Ω, SNR> 100Db and THD + N 0.0003%, allows full sound, soft high frequencies and heavy bass , providing better music experience. 【Fashion and Convenient】 Headphone amplifier design is fashion and durable, Aluminum alloy matte surface can effectively improve anti-interference and heat resistance, the circuit is arc designed to avoid current interference at the tip of the wedge, thus simulating grounding. 【Widely Compatible】 The Amplifier is compatible with MP3 players, personal media players, mobile phones, laptops, laptops and various digital devices. Dynamic and quiet, more suitable for rock, pure music and dancing, helping to drive the headset at high impedance or low sensitivity. 【High Quality Audio Amplifier】 High quality filter capacitor, adding sound field to enhance stereo and depth. Sealed step potentiometer with good resistance to rotation and good hand feeling. It adopts a rechargeable lithium battery with a capacity of 2000mAh, which can keep it working for more than 8 hours. 【100% Guarantee】 If you have any questions about our products while using them, please feel free to contact our 24/7 customer service, we will provide a professional assistant for you.