⚠️ Important Notice: Soldering Required & 4-Pole Pinout Compatibility

1. DIY Soldering Skills Required: This is a solder-type connector that requires a soldering iron, solder wire, and basic wiring skills. Always slide the metal housing sleeve onto the cable BEFORE soldering pins.
2. 4-Pole TRRS Configuration: This plug features 4 poles (Tip, Ring 1, Ring 2, Sleeve) designed for stereo audio plus microphone/inline controls. It is not a standard 3-pole TRS audio-only plug.
3. CTIA vs OMTP Wiring Standards: Pin 1 is Left Channel and Pin 2 is Right Channel. Pin 3 and Pin 4 differ by standard (CTIA: Pin 3 Ground, Pin 4 Mic; OMTP: Pin 3 Mic, Pin 4 Ground). Please verify your original headset pinout before soldering.
4. Cable Diameter Limit: The tail wiring hole inner diameter is 4mm (0.16 in). It is suitable for headphone and audio cables with an outer jacket diameter up to 4mm.
5. Heat Management: Solder each contact point quickly (within 2–3 seconds at ~350°C) to prevent overheating and melting internal insulation rings.

Product Overview

The 3.5mm (1/8") TRRS 4-pole male solder audio plug is a premium replacement connector engineered for repairing or custom-building headset, earphone, and microphone cables. Featuring gold-plated conductor pins for clean, corrosion-resistant signal transmission and a threaded aluminum alloy metal housing, this plug delivers dependable durability and high-fidelity sound for DIY enthusiasts and audio repair technicians.

Key Features

• 4-Pole TRRS Support: Handles stereo left/right audio plus microphone and inline remote control signals across 4 dedicated solder contacts.
• Corrosion-Resistant Gold Plating: Gold-plated plug and solder terminals minimize signal loss, lower contact resistance, and protect against oxidation.
• Durable Aluminum Alloy Shell: Threaded metal housing provides reliable strain relief, electromagnetic shielding, and lasting mechanical protection.
• Compact 4mm Cable Entry: 4mm (0.16 in) rear cable opening accommodates standard headphone and microphone repair wires.
• Cost-Effective Audio Repair: Restores damaged, frayed, or broken 3.5mm headset plugs without replacing the entire headset or microphone.

Compatible Devices

Compatible with 3.5mm TRRS audio devices and repair applications (note: list is not exhaustive):

• Gaming headsets with integrated boom microphones (PC, Xbox, PlayStation controllers with 3.5mm jack)
• Smartphones, tablets, and laptops equipped with standard 3.5mm audio/mic combo jacks
• Lavalier microphones, conference microphones, and portable audio recording gear
• DIY custom auxiliary and microphone cables

Common Daily Applications

• Headset Cable Repair: Replacing broken, bent, or intermittent 3.5mm jack plugs on gaming headsets and daily earphones.
• Lavalier & Lapel Mic Restoration: Re-terminating field recorder and wireless mic receiver connections.
• Custom Audio Cabling: Soldering custom-length 4-pole TRRS patch cables for podcast setups and mobile live streaming.
• Car AUX & Hands-Free Integration: Building dedicated 4-conductor cables for automotive audio inputs supporting microphone return.

Specifications

Frequently Asked Questions FAQ

Q: Is this plug suitable for stereo headphones without a microphone?
A: Yes. It can be used for standard 3-pole TRS stereo applications by wiring Tip (Left), Ring 1 (Right), and bridging Ring 2 with Sleeve to Ground, though a dedicated TRS plug is typically simpler for audio-only setups.

Q: How do I wire this plug for CTIA vs OMTP headsets?
A: For both standards, Pin 1 (Tip) is Left Audio and Pin 2 (Ring 1) is Right Audio. For CTIA (standard on modern smartphones, PC headsets, and gaming consoles), solder Ground to Pin 3 (Ring 2) and Microphone to Pin 4 (Sleeve). For OMTP (legacy devices), solder Microphone to Pin 3 and Ground to Pin 4.

Q: What cable wire gauge or outer diameter fits this plug?
A: The metal sleeve tail hole has an inner diameter of 4mm (0.16 in), making it ideal for cables with an outer jacket diameter of 4mm or smaller.

Q: Do I need heat shrink tubing when assembling?
A: Using small heat shrink tubing or insulating tape around internal solder tabs is recommended to prevent short circuits between poles once the metal shell is screwed tight.