This handsfree is compatible with the following Sony Ericsson models :

J100a, K510a, K550i, W200a, W300i.

Features:

Excellent sound quality.

Extended boom microphone.

Cord mounted Answer / End button.

Modern over-the-ear design.

Connects directly to the phone for handsfree operation.

Includes movable clip which along the cord to clip on shirts.

Small, lightweight and stylish.