Bluetooth DAC & Headphone Amplifier ES9018K2M Screen 1.3 inch OLED, 128*64 pixels Stable connection with ultralow delay. Supports APTX/APTX-LL/APTX-HD/LDAC. USB PCM : 16-32bit/44.1k-384KHZ DSD64-256 THD N Optical 0.00087% Coaxial 0.00087% Aux 0.07% Compatible with IOS/Android wireless connection. Bluetooth Version 5.1 Qualcomm’s QCC5125 Maximum Communication Range: About 10 meters
