1PCS Headphone Splitter 3.5mm Extension Cable Audio Stereo Y Splitter (Hi-Fi Sound) 3.5mm Male to 2 Ports 3.5mm Female spliter

1PCS Headphone Splitter 3.5mm Extension Cable Audio Stereo Y Splitter (Hi-Fi Sound) 3.5mm Male to 2 Ports 3.5mm Female spliter

Aliexpress UK