Adapter: 1 x 3.5 mm mono socket to 1 x 2.5 mm mono jack plug ( PA1 )

The PA1 adapts a 3.5 mm dia. plug to fit a 2.5 mm dia. microphone or other socket

The PA1 adapter fits any recorder with a 2.5mm diameter microphone socket such as the Philips 388 microcassette recorder.