Monoprice

Monoprice 110151 3.5mm Male to Female Audio Extension Cable 50ft

4.1 (211 reviews)

Extend your audio connection up to 50 feet with this gold-plated 3.5mm extension cable designed to fit through phone cases.

$14.95*
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*Price sourced from Amazon.com. Last updated:Jun 28, 2026.Price and availability are subject to change.

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Overview

The Monoprice 110151 3.5mm Audio Extension Cable delivers a full 50 feet of reach, making it an ideal choice for connecting headphones, speakers, or audio sources across large rooms, outdoor events, or studio environments where a short cable simply will not do. The cable uses a standard 3.5mm male-to-female configuration, so it works as a straightforward extension for virtually any device with a headphone or auxiliary jack. Gold-plated connectors on both ends help maintain a clean signal path and resist oxidation over time.

A notable design detail is the ultra-thin connector heads, which are slim enough to plug directly into phones without removing protective cases. The black cable blends unobtrusively into most environments, and Monoprice's quality control standards help ensure consistent performance at a price well below many competing brands. For anyone needing to bridge a significant distance with analog audio, this cable offers a practical and cost-effective solution.

Key Features

Gold plated connectors for smooth, corrosion-free connections

Male 3.5mm plug and female 3.5mm jack

Designed for Mobile cable features ultra-thin connector heads, which are designed to fit through a phone case

Quality at a Fair Price: Monoprice's rugged design and rigid quality control standards deliver high quality products at fair prices.

Specifications

Brand
Monoprice
Model
110151
Cable Length
50 Feet
Connector Type
3.5mm Male Plug to 3.5mm Female Jack
Connector Plating
Gold Plated
Cable Design
Ultra-Thin Connector Heads (Mobile-Friendly)
Color
Black

Pros & Cons

👍 Pros

  • 50-foot length provides exceptional reach for long-distance audio runs
  • Gold-plated connectors on both ends resist corrosion and maintain signal quality
  • Ultra-thin connector heads fit through phone cases without removal
  • Simple male-to-female design makes it universally compatible with 3.5mm devices
  • Affordable price point from Monoprice without sacrificing build quality

👎 Cons

  • At 50 feet, some signal degradation is possible compared to shorter runs
  • The long cable length can be cumbersome to manage and store
  • No braided or reinforced sheathing, which may limit long-term durability
  • Not a TRRS cable, so it will not pass inline microphone signals

Frequently Asked Questions

Yes, the connector heads are specifically designed to be slim enough to fit through standard phone cases without requiring removal.
This cable is 50 feet (approximately 15.2 meters) long, making it suitable for extending audio across large rooms or outdoor setups.
This is a standard TRS 3.5mm extension cable, so it can pass through stereo audio signals. It is not designed for TRRS (combined mic and audio) connections.
Yes, both the male 3.5mm plug and the female 3.5mm jack feature gold-plated connectors for corrosion-free signal transfer.