The FiiO DM15 R2R is a breakthrough portable CD player that brings vintage disc playback into the modern age. At its heart sits a proprietary fully differential 24-bit R2R DAC built from 192 precision resistors, delivering warm, organic analog sound with exceptional detail retrieval and ultra-low distortion. Beyond CD playback, the DM15 R2R works as a complete digital hub: HiFi-grade USB DAC supporting up to 384 kHz/32-bit and DSD256, a Bluetooth 5.4 transmitter with aptX Adaptive for wireless streaming, and optical/coaxial digital outputs for home systems. It even lets you rip CDs to WAV while listening. With up to 7 hours of battery life, powerful 1150 mW balanced output, and a patented Desktop Mode for stationary use, it is built for both portable and desktop listening.