Headphone jacks are available in different sizes and types for good compatibility and connection with different devices. These work as the connectors which receive the plug inserted. All smart devices come with a jack port to make these connections. But the sizes may vary so we need a different size jack for our devices or headphones.[Read more…] about 2.5mm vs 3.5mm vs 4.4mm vs 6.35mm- Which one is for you?