Why do you need a Digital to Analog Converter (DAC)? The DACs in a smartphone, computer, tablet or audio player on the market are not designed for processing high quality sound. You are going to need an exceptional external HiFi Digital to Analog Converter (DAC) to process your music files in high resolution to enhance your audio experience. iFi audio has developed top of the line products to meet the various needs and preferences whether you are an everyday listener or an experienced audiophile. iFi ZEN Blue The ZEN Blue by iFi audio is a compact home audio DAC designed with cutting-edge technology to bring audiophile grade sound to your existing home audio system. Or simply connect to upgrade your existing home entertainment system to receive Bluetooth. Connect the ZEN Blue wirelessly to your smartphone, tablet, laptop, or any device that transmits Bluetooth, then stream from your favorite music app such as Amazon Music Spotify, Tidal or Qobuz. Up to 7 devices can be paired. This will seriously ramp up your enjoyment as the hi-res audio will now be on par with the 4K picture quality. The Tech The ZEN Blue receives Bluetooth (aptx X HD, aptX, LDAC, HWA, AAC and SBC) using a ESS Sabre dac chipset with up to 24 bits/192 kbps for CD quality sound. With the latest Qualcomm 5100 series Bluetooth you won't suffer the 30% quality drop found with standard Bluetooth. Connect via analogue RCA output to your amp or active speaker. Use the digital SPDIF coaxial/optical output connection to boost audio on your TV. The 4.4mm balanced output connects to a BAT amplifier, or use 4.4mm > XLR to hook up to pro level active speakers. Easily switch between digital and analogue stages with the dedicated switch. Upgrading your system could not be easier or more stylish. Just connect, relax, and enjoy the music!