Koss KEB6IW wired in-ear headphones with microphone, 13mm driver, white

Everyday listening in-ear

The Koss KEB6IW is a wired in-ear headphone with an inline microphone, built around a 13mm driver for stereo sound. A 3.5mm mini-phone plug connects directly to phones, laptops or tablets without pairing or charging. Three cushion sizes — small, medium and large — let the buyer choose the fit that seals best in their ear canal. The 4.00 ft dual-entry cord keeps left and right channels separate from the splitter to the buds.

Build integration

The single 3.5mm TRRS connector carries both audio and microphone signals, so only one port is needed on the host device. No battery, Bluetooth radio or software driver is required, freeing a USB port and eliminating latency concerns for voice calls. The straight cable runs 3.94 ft from plug to earpieces, giving enough slack for pocket or desk use without excess coil. White colourway matches light-themed setups.

Sustained use behaviour

Passive drivers and a purely analogue connection mean output stays consistent for as long as the source device supplies power — no battery fade, no codec renegotiation and no thermal throttling. The 32 ohm impedance and 106dB sensitivity at 1kHz deliver ample volume from low-power outputs while keeping current draw minimal. Frequency response spans 16Hz to 20kHz, with the manufacturer also noting a 60Hz to 20kHz range for music content. Sealed earbuds reduce sound leakage during long sessions.