Editing Smartphone (section)

====Audio connector====
The [[Phone connector (audio)#Miniature size|3.5mm headphone receptible]] ([[colloquialism|coll.]] "''headphone jack''") allows the immediate operation of passive [[headphone]]s, as well as connection to other external auxiliary audio appliances. Among devices equipped with the connector, it is more commonly located at the bottom (charging port side) than on the top of the device.

The decline of the connector's availability among newly released mobile phones among all major vendors commenced in 2016 with its lack on the Apple [[iPhone 7]]. An [[adapter]] reserving the charging port can retrofit the plug.

Battery-powered, wireless Bluetooth headphones are an alternative. Those tend to be costlier however due to their need for internal hardware such as a Bluetooth [[transceiver]] and a battery with a charging controller, and a Bluetooth coupling is required ahead of each operation.<ref>{{cite web |title=Was ditching the headphone jack a good idea? |url=https://www.soundguys.com/was-ditching-the-headphone-jack-a-good-idea-13825/ |website=SoundGuys |date=9 August 2019}}</ref>