Tech Graveyard/consumer
The 3.5mm Headphone Jack (1964-Dying)
The 3.5mm jack survived 50+ years on phones, then disappeared in eight. The replacement is not just wireless. It is a tiny computer with firmware and identity.
Born 1964 · Still dying · Status: dying
Certificate of Death
Name of decedent
The 3.5mm Headphone Jack
- Born
- 1964
- Died
- —
- Age
- 62+
Cause of death
Apple removed it in 2016. The industry followed within four years. AirPods made wireless the default.
Survived by
Bluetooth, AirPods, USB-C audio, smart earbuds with embedded compute
Invented by
TRS connector standardized for portable audio in the 1960s
The hook
Apple removed the headphone jack from the iPhone in September 2016. The reaction was outrage. Within four years, almost every flagship phone shipped without one. Within seven years, your audio device had its own CPU and identity.
Thesis. The headphone jack died because the audio device stopped being a passive transducer and became an active computer. Wireless was necessary but not sufficient. The deeper shift: every earbud now has firmware, an identity, an attack surface, and a relationship with the cloud.
The story
The origin
1960s. The 3.5mm TRS connector standardized portable audio. Sony Walkman in 1979 cemented the form factor. For 50 years the jack just worked. Passive, simple, universal across vendors.
The smartphone era
2007 to 2016. The jack persisted on every smartphone. It was the universal audio interface. Users assumed it always would be.
The Apple move
September 2016. iPhone 7 shipped without a headphone jack. Apple launched AirPods in December 2016. The W1 chip enabled instant pairing across an Apple account. The pitch was courage. The reality was an ecosystem play.
The industry capitulation
2017 to 2020. Samsung, Google, OnePlus all removed the jack. AirPods became the best-selling consumer audio product in history, generating about $14B in annual revenue at peak. Other vendors raced to match.
The smart-earbud era
2020 to 2025. ANC, transparency mode, spatial audio, hearing health monitoring, real-time translation. Earbuds became full-fledged computing devices. The Apple H2 chip (AirPods Pro 2, 2022) shipped on-device DSP and ML for personalized audio.
Key data points
- iPhone 7 launches without headphone jack: September 2016
- AirPods launch: December 2016
- AirPods peak annual revenue: about $14B in 2022
- Bluetooth LE Audio standard finalized: 2020
- Apple H2 chip in AirPods Pro 2: 2022
Contrarian angle
The cybersecurity community has barely noticed that hundreds of millions of people are wearing always-on, always-listening, internet-connected computing devices in their ears. The attack surface is enormous. The defense is invisible. The headphone in your ear is closer to a phone than to a speaker, and almost no consumer treats it that way.
The flip side
What replaces it
The paired prediction in Future Tech.
Read the predictionFAQ
Are Bluetooth audio codecs secure?
Mostly yes for confidentiality once paired. The risks are at the pairing handshake (BIAS, KNOB attacks against older implementations) and at the firmware layer, which most users never update.
What can smart earbuds hear without you knowing?
Anything within microphone range, if the firmware allows it. Most vendors require explicit assistant invocation, but the hardware is capable of continuous capture. The trust boundary is the firmware vendor.
Why did Apple really remove the headphone jack?
Internal volume for larger batteries, water resistance, and an ecosystem hook through AirPods. The official courage framing was marketing. The real motivation was hardware economics and accessory revenue.
Can wireless earbuds be hacked?
Yes. Pairing attacks, firmware exploitation, and companion-app vulnerabilities have all been demonstrated. The practical risk for ordinary users is currently low because attackers prefer higher-value targets.
What is LE Audio and why does it matter?
Bluetooth LE Audio brings lower power consumption, multi-stream support, and Auracast broadcast audio. It enables hearing-aid-style features in normal earbuds and shared-audio scenarios that classic Bluetooth could not.
More from guptadeepak.com
Want the technical deep-dive on what replaces this?
Read the companion articleRelated obituaries
More from the consumer graveyard.
1994 — 2025
DyingThird-Party Cookies
Lou Montulli invented the cookie at Netscape in 1994 to keep shopping carts working. He did not intend to power a $400 billion ad surveillance industry.
Cause: Safari ITP (2017), Firefox ETP (2019), Chrome compliance (2024), regulatory pressure
consumer · Peak 2015 · Final breath 2026
1989 — 2020
DeadStandalone GPS Devices
Garmin survived by pivoting to wearables. TomTom survived by becoming a map data supplier. The standalone GPS unit on your dashboard did not.
Cause: Smartphones with free turn-by-turn navigation plus crowd-sourced live traffic data
consumer · Peak 2007 · Final breath 2025
2001 — 2022
DeadThe iPod and the Era of Owning Files
The iPod's quiet death in 2022 marked something bigger. The era of owning the files on your device ended. Subscriptions and auth tokens took over.
Cause: Streaming services replaced file ownership with subscription auth tokens
consumer · Peak 2008 · Final breath 2022