Absolutely necessary for functionality.
These are absolutely needed to restore functionality to modern crippled smart phones. A total pain in the patoot to carry a dongle to make your phone function with wired headphones. But, with modern crippled phones you absolutely have to have them or you are stuck with Bluetooth that cuts out in the middle of what you are listening to with RF interference and pauses infernally often with every incoming notification or text message. Wired headphones are NOT susceptible to problems from microwave ovens, lawnmowers, or power tools. If you never ever do things productive with your hands you can probably stick with Bluetooth and be satisfied. The split dongle is great that you can charge your phone while listening. Alas, you cannot USB attach your phone with the dongle but charge only. Read more
















