Headphone extension cable UGREEN AV123 — 3.5 mm male to 2× 3.5 mm female, black

UGREEN AV123 is a passive 3.5 mm headphone extension and splitter cable in black that converts a single 3.5 mm output into two 3.5 mm female sockets. The cable allows two users or two audio devices to share the same line-level signal from phones, tablets, laptops and portable audio players without requiring power or active electronics. The compact, low-profile design and reinforced connectors make it suitable for everyday portable use.

Advantages

The cable provides a simple passive split of an analog stereo signal without altering the source settings. Reinforced plugs and a flexible TPE jacket increase mechanical durability and resist minor bending and abrasion. Copper conductors ensure reliable signal transmission, while the low-profile aluminum and ABS connector housings offer stable contact with 3.5 mm jacks. No power or drivers are needed for operation.

Suitable for

• Sharing audio from smartphones and tablets between two headphones
• Connecting two sets of headphones to a laptop or desktop with a single headphone jack
• Splitting a portable audio player output to two speakers or recording devices for monitoring
• Temporary signal routing in classrooms, meetings or travel situations

Key specifications

• Connector configuration: 1 × 3.5 mm male to 2 × 3.5 mm female (stereo)
• Cable material: TPE outer jacket for flexibility and abrasion resistance
• Conductor material: copper for reliable analog signal transmission
• Connector housings: aluminum and ABS for compact, durable plugs
• Color: black
• Operation: passive, no power required

How to use

Insert the 3.5 mm male plug into the audio output of your source device. Plug headphones, earphones or line-level inputs into the two 3.5 mm female sockets. The splitter passes the stereo signal to both outputs simultaneously. Adjust volume and playback on the source device; avoid setting volumes too high when two listeners are connected to prevent excessive level or imbalance. Disconnect by gently pulling on connector housings rather than the cable itself.

Usage recommendations

For the best listening experience, use headphones or devices with similar impedance and volume sensitivity. When connecting active speakers or equipment with independent amplification, ensure compatibility to avoid signal distortion. Store the cable coiled loosely to prevent stress at the connector ends.