Not all Bluetooth is created equal. Have utter confidence in the sound quality of the ZEN Blue. It uses Bluetooth5.0®, the very latest version, and the newest Qualcomm 5100 chip to process all incoming Bluetooth® data. There ESS Sabre DAC chip is there to ensure an extremely smooth digital to analogue conversion. Banish standard ‘Bluetooth Blues’ with the iFi hi-res implementation. Analogue – connect via RCA to amps or active speakers or via the 4.4mm output to amps/speakers with a balanced input. Digital – use the optical and coaxial connections to connect to anything with a built-in DAC and corresponding digital input; your TV, an AV amp or an external DAC in your hi-fi set-up.