The UA1s is a portable DAC and headphone amplifier for high-definition listening. The UA1s uses an ESS ES9219C DAC chip, is capable of 32 bit/384 kHz PCM and native DSD256 resolution. A feedback LED indicates the sampling of the currently playing file. The output power reaches 80 mW @ 32 Ohm. FPGA USB input architecture provides low noise, stable connection and low signal delay. The USB-C connection is ideal for smartphones and laptops, and the 3.5 mm single-ended output is compatible with most earphones and headphones. Compatible with Shanling's free Eddict Player app on Android.