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Black coiled spring cable extending to 18 feet with inline volume dial and 3.5mm plugs

Brainwavz

Brainwavz 18ft Coiled Extension Cord with Volume Control accessory

SKU CH-R9CY-RFB3D

An 18 ft coiled 3.5 mm extension cord with in-line volume control, RCA and USB adapters, and 40 mm drivers for TV or PC listening

  • TypeHeadphone Extension Cords
  • Extra-long 18 ft coiled cord lets you move freely while watching TV
  • In-line volume control adjusts sound without reaching for the remote
  • 40 mm NdFeB drivers deliver clear, balanced audio for immersive listening
  • 5 mm, RCA and USB adapters connect to most old and new TVs
  • Spring-coiled design stretches to 5.5 m then retracts for tidy storage

What this product is and who it is for

This 18-foot coiled extension cord adds length and an in-line volume control to any headphones with a 3.5 mm plug. It includes RCA-to-3.5 mm and USB-to-3.5 mm adapters so you can connect to older TVs, newer smart TVs, or PCs that offer those audio outputs.

What the bundled accessories actually change

The two adapters let a single 3.5 mm headphone jack work with RCA ports or USB audio ports without extra dongles. The spring-coiled cable stretches up to 5.5 metres and retracts to keep slack off the floor, while the inline slider adjusts volume directly at the cord.

Who this suits and who should look elsewhere

This suits listeners who need a long, tidy run from a seated position to a TV or desktop that has AUX, RCA, or USB audio out. It does not suit buyers who want a built-in microphone for calls, those who prefer bass-heavy tuning, or anyone whose display only offers optical or HDMI audio outputs.

Highlights

  • Extra-long 18 ft coiled cord lets you move freely while watching TV
  • In-line volume control adjusts sound without reaching for the remote
  • 40 mm NdFeB drivers deliver clear, balanced audio for immersive listening
  • 5 mm, RCA and USB adapters connect to most old and new TVs
  • Spring-coiled design stretches to 5.5 m then retracts for tidy storage

Specifications

TypeHeadphone Extension Cords

Questions about this item

Will the in-line volume control or the 3.5 mm plug wear out with daily use?

The in-line volume control is a passive potentiometer on the coiled cable and the 3.5 mm plug is a standard gold-plated connector; both are rated for thousands of insertion cycles and typical home-TV use will not require replacement.

What stops the coiled cable from stretching to its full 18 ft length during a long viewing session?

The internal spring tension of the coiled cord provides the limiting force; it will extend up to 18 ft (5.5 m) and then resist further pull, so the coil itself is the first limit you encounter.

Does the cable or the 40 mm drivers get warm after hours of continuous TV watching?

The headset is entirely passive — no amplifier, battery or active electronics — so the 40 mm NdFeB drivers and the coiled cable remain at room temperature even during all-day use.

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