... exposure from cell phone use.--3.5mm gold-plating jack plug can compatible with all 3.5mm jack mobile phones and computers, ... operation.--Enhanced clarity speaker and microphone, cleans up cell communications "noise".--4m cord length and 3.5mm cord diameter durable and ... feeling and more stable to place.-- Now available in red, white, blue, black, yellow, green, pink, orange, purple 9 colors ...