High-Z Headphone Compatibilityl: Supports headphones with a maximum impedance of 201-250 Ohm, catering to a wide range of audio equipment Dual CS43198 Chipset: Equipped with dual CS43198 chipsets for superior audio processing and enhanced fidelity USB Connectivity: Effortlessly connect to your devices via USB, offering versatile and convenient audio playback High-Resolution Audio Support: Experience unparalleled sound quality with 32bit/384KHZ DSD256 support, ensuring crystal-clear audio No Built-in Battery: Designed without a built-in battery, ensuring no power fluctuations affect your listening experience Product Name: DAWN high-performance portable /AMP Earphone Jack: 3.5mm single-ended / 4.4mm balanced jack Dynamic Range (A-): 132dB@1kHz +N: 0.00014%@1kHz Output Magnitude: 4.1Vrms@0dBFS Output Power: 124+124mW@16Ω +N Less than 1% (The product printed words depending on the batch, but this does not affect use) Color:As Shown Material:Aluminum Alloy Package Contents: 1 * Dawn Pro 2 USB Amplifier KITS Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.