Not really, let's see: You have two analogue ears and a smartphone, the traditional and cheaper way is to put the DACs and the battery inside the smartphone and

Not really, let's see: You have two analogue ears and a smartphone, the traditional and cheaper way is to put the DACs and the battery inside the smartphone and then feed two passive impedances using 4 wires. So far, so good: it makes sense, it works, most people are happy with it. And then there's the overengineered way that enables some companies to sell a much more expensive product with greater margins: let's replace those cheap speakers with two tiny computers. Each one of them needs its own DAC, its own battery and its own Bluetooth antenna. Now you have to recharge these marvels of technology after a few hours and maybe worry about pairing because Bluetooth is what it is. You still carry your smartphone around plus a charging station for your shiny new toys, which only can sound worse than what you used before someone convinced you it was obsolete because they said it was.