Audio Adapter 2.5mm jack female / 3.5mm male Stereo InLine 99309

This InLine audio adapter converts a 2.5mm jack female to a 3.5mm male stereo connector, allowing connection between devices with different headphone or line‑out ports. The adapter has nickel‑plated contacts for reliable signal transmission and a black housing that fits common audio setups.

Advantages

The adapter provides a simple, compact solution for connecting devices with a 2.5mm socket to equipment with a 3.5mm plug. Nickel‑plated contacts reduce corrosion and help maintain consistent audio quality. Its small form factor and standard stereo wiring make it compatible with most headphones, speakers and portable audio players that use these connector sizes.

Suitable for

• Connecting headsets or headphones with a 2.5mm jack to devices with a 3.5mm input
• Adapting older mobile phones or portable audio players to standard 3.5mm accessories
• Temporary audio connections between equipment with mismatched connector sizes

Key specifications

• Connector 1: 2.5mm jack female
• Connector 2: 3.5mm plug male, stereo
• Contacts: nickel‑plated
• Colour: black
• Brand: InLine, MPN: 99309, EAN: 4043718056934

How to use

Insert the 3.5mm male plug into the 3.5mm socket of your audio device. Plug the 2.5mm jack of your headset or cable into the adapter’s 2.5mm female connector. Ensure both connections are fully seated to avoid intermittent sound. Remove the adapter by pulling straight from the plug; avoid twisting to prevent wear.

Recommendations

Use indoors or in protected environments to avoid moisture and dirt. For best audio performance, avoid bending the connectors under strain and store the adapter in a dry place when not in use.