Audirect Beam 4 USB DAC with 3.5mm, 4.4mm Headphone Amp | Battery Built-in

Audirect's Flagship Portable DAC Amplifier DAC chip used is ESS Sabre HiFi saber series ESS 9281 AC PRO, supporting up to PCM 32bit/768kHz and DSD 512 decoding. Offers both 3.5mm single-ended and 4.4mm balanced interfaces, catering to different needs. Built-in MCU battery management system for intelligent power allocation. Supports Apple Music Lossless high-fidelity lossless music. The outer shell is made of an integrated copper-zinc alloy and has a sleek design, weighing only 62 grams. The body comes with volume control and a three-level gain adjustment feature. Frequency response range is 20Hz-40kHz, with a signal-to-noise ratio ≥-119dB. Three-level Gain Adjustment Feature The three adjustable gain settings make driving different types of headphones easier. The Low Gain is suitable for driving high-sensitivity in-ear headphones, while the High Gain offers excellent driving capability for over-the-ear headphones. It is more convenient to set the appropriate volume level and is a gr