Bridge the gap between bare-wire audio and modern smart devices with the 3.5mm 4-Pole Stereo Terminal Block Adapter. This specialized connector features a 4-conductor (TRRS) plug, allowing it to carry not just stereo audio (Left & Right), but also a microphone or video signal. Designed for efficiency, it replaces the need for soldering or crimping, making it the perfect tool for repairing headsets, connecting specialized microphones, or integrating custom audio-visual signals into smartphones, tablets, and laptops.
Headset & Mic Repair: Quickly fix broken 3.5mm jacks on gaming headsets or mobile earphones using existing wires.
Smartphone AV Integration: Route custom audio or composite video signals into devices with a combined 3.5mm headphone/mic jack.
Engineering & Prototyping: Ideal for developers working with audio triggers, sensors, or auxiliary data transfer via a 3.5mm port.
Custom Microphone Setups: Connect professional bare-wire microphones or lapel mics to portable recorders and mobile devices.
4-Conductor (TRRS) Compatibility: Supports Tip-Ring-Ring-Sleeve (TRRS) signals, covering Left Audio, Right Audio, Ground, and Microphone/Video.
Solderless Terminal Block: The green screw terminal block provides a firm, vibration-proof grip on bare wires, ensuring a stable connection.
Industrial-Grade Strain Relief: The rugged black PVC molded body is designed with an ergonomic grip and protects internal connections from physical stress.
Gold-Plated Contacts: Precision-engineered gold plating ensures maximum conductivity and prevents signal crackle or corrosion over time.
Full Functionality: Unlike standard 3-pole stereo adapters, this 4-conductor version supports modern devices that require a microphone or control signal.
High-Fidelity Signal: Maintained internal shielding ensures that your audio remains crisp and your microphone signal stays clear of interference.
Tool-Free Installation: Swap, repair, or reconfigure audio lines in seconds using only a small flathead screwdriver.
Connector A: 3.5mm (1/8") 4-Pole (TRRS) Male Plug
Connector B: 4-Terminal Screw Block (Mapped to T, R, R, S)
Signal Support: Stereo Audio + Microphone / Video
Form Factor: Straight-through, compact design.
Is this the same as a "Standard" headphone plug?
No. Standard headphone plugs are 3-pole (TRS). This is 4-pole (TRRS), which is used for devices that also have a microphone or video function (like smartphones or Xbox/PS5 controllers).
How do I know which screw corresponds to the Mic or Ground?
Most units follow a standard mapping (Tip, Ring 1, Ring 2, Sleeve). We recommend testing your device's specific pinout with a multimeter to ensure the Left, Right, and Mic wires are in the correct positions.
Will it work with my iPhone/Android?
Yes. It is compatible with all devices that feature a standard 3.5mm TRRS jack. Note: For modern phones without a jack, you will still need your USB-C or Lightning to 3.5mm dongle.
