The Midland EP21 is a microphone/headset with a 1-pin connector. It is designed to be used with Midland devices that support the Midland 1-pin connector.

This microphone/earpiece offers a convenient solution for communicating in situations where discretion or hands-free interaction is required. It can be used with radios and other compatible Midland devices.

The headset has a 3.5mm jack socket, making it compatible with standard audio devices that support this connection. This also allows the headset to be used with music players, mobile phones and other devices that have a 3.5 mm jack socket.

The Midland EP21 offers crisp audio quality and clear communication thanks to its built-in microphone. It's designed to be comfortable to wear and use, with a lightweight design that fits comfortably in your ear.

If you're looking for a microphone/headset with a Midland 1-pin connector and a 3.5mm jack socket, the Midland EP21 is an affordable and versatile choice. It offers a convenient communication option and is compatible with a variety of audio devices.