High Fidelity USB DAC: The CX31993 Headphone Amplifier features a high-fidelity USB DAC, ensuring superior audio quality for your headphones. 3.5mm Headphone Amplifier: Equipped with a 3.5mm headphone amplifier, it enhances audio output for a rich and immersive sound experience. IEM AMP Mobile Phone Adapter: This product functions as an IEM amplifier and mobile phone adapter, offering versatility with smartphones. Compact Design: Its compact design makes it easy to carry, ideal for travel or on-the-go use. Enhanced Audio Decoder: The integrated audio decoder improves sound quality for a superior listening experience. CX31993 USB DAC C to 3.5mm Headphone Amplifier, Audio Decoder, IEM AMP, Mobile Phone Adapter Due to manufacturing variations, there may be slight differences in product appearance, color, or printed text—these do not affect functionality. Cable: 8-Strand Pure Silver Line Color: Transparent-Blue & Transparent Material: Metal Package Contents: 1 × Headphone Amplifier Note: Light reflection and display settings may cause slight color variation between the image and the actual product. Measurement tolerance is ±1–3 cm.