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Small metal box with two 3.5 mm jacks and a button, plus a 1 m cable

cooidea A02 3.5mm Audio Switch 2 Ports 1m Cable

SKU CH-NB3Q-9J6M2

A bidirectional 3.5 mm audio switcher with two ports, 1 m cable and metal casing for one-input two-output or two-input one-output switching

  • Type3.5mm Jack
  • Changer TypeAuxiliary
  • Ports2
  • Cable Length1
  • Input Connector2
  • Output ConnectorFemale
  • Switch between two sources or two outputs with one press
  • Bidirectional 3.5 mm selector needs no external power
  • Gold-plated contacts and low-impedance design for clean audio
  • Compact metal casing measures 33 × 28 × 13 mm
  • Includes a 1-metre 3.5 mm cable for immediate use

Cooidea A02 3.5 mm Audio Switch

The Cooidea A02 is a bidirectional 3.5 mm stereo audio switcher that lets users toggle between two sources or two playback devices with a single button press. It operates in 1×2 or 2×1 mode without any external power supply, making it a compact solution for desktop or office setups where frequent cable swapping is inconvenient.

Passive analogue switching limits

Because the unit is entirely passive, it cannot amplify signals or drive high-impedance loads beyond what the source provides. The gold-plated 3.5 mm jacks accept both three-pole and four-pole plugs, but the microphone contact on four-pole headsets is not connected, so voice chat or recording functions will not work through the switch.

One-metre cable included

A 1 metre 3.5 mm audio cable is supplied in the box, so the switch can be placed up to that distance from the common source or playback device without buying an extra lead. Users needing longer runs or microphone pass-through will have to add their own extension cables or choose a different device.

Highlights

  • Switch between two sources or two outputs with one press
  • Bidirectional 3.5 mm selector needs no external power
  • Gold-plated contacts and low-impedance design for clean audio
  • Compact metal casing measures 33 × 28 × 13 mm
  • Includes a 1-metre 3.5 mm cable for immediate use

Specifications

Brandcooidea
ModelA02
Part NumberA02
Type3.5mm Jack
Changer TypeAuxiliary
Ports2
Cable Length1
Input Connector2
Output ConnectorFemale
Maximum ResolutionsSmall
Dimensions3.3 in x 2.8 in x 1.3 in
Weight0.03 kilograms

Questions about this item

Which mode should I pick — one source to two outputs or two sources to one output?

The switcher works both ways: connect one source to the common port and two headphones or speakers to the channels for 1×2, or connect two sources to the channels and one output device to the common port for 2×1.

What does the low-impedance design do for sound quality?

Low impedance reduces cable noise and preserves the original signal so music and game audio stay clear when you switch between devices.

Does the 3.5 mm jack support four-pole headsets with a microphone?

Four-pole plugs work for stereo playback but the microphone contact is not connected, so voice chat will not function through this switcher.

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