Wireless Technologies Hands Free Ear Bud Style Headset with Send, End Button for Sony Ericsson T237, T637 Sleek ear bud headset design fits snugly into the ear with a padded foam earpiece cover In-line microphone which reduces background noise & increases the volume of your voice Drive more safely with both hands on the wheel Has a miniature clip to keep the cord in place. Compatible with Sony Ericsson T20 T28 T29 T39 T60 T61 T62 T66 T68 T200 T226 T237 T300 T306 T316 T608 T610 T616 R300 R320sc R380 R520m A2218 A2288 P800 P900 Z200 Z500 Z600 T630 T637 S710a K500i K700i Z300a Z500a Z500