The USB input includes Active Noise Cancellation to eliminate unwanted background noise. The tosklink S/PDIF digital optical input is galvanically-isolated to reduce jitter and reclock the signal. The Bluetooth receiver decodes both aptX and AAC to suit Android and Apple alike for CD quality streaming audio. It uses the iFi signature Burr Brown chipset for native playback of all hi-res audio formats up to PCM (32 bit / 384kHz), DSD256, and MQA, and is compatible with any file in your digital library, such as MP3, FLAC, WAV, ALAC, etc. Use the RCA outputs to provide an analogue signal to an AV amplifier, soundbar, or headphone amplifier. Additionally, you can use a fibre optic cable from the digital optical output to use the Nano iOne as a USB to Toslink converter or as an optical Toslink to RCA converter.