This Defender Wired Headset is for mobile devices, tablets and PCs. The headset is made for new models of laptops, tablets or smartphones with combined 4-pin headset jack. It is ideal for laptops or notebooks. The headset has a microphone and call response button on its cord. It uses the closed earcup design and additionally has an adapter for PC. It allows to connect the headset to old models of laptops and PCs (models with two separate jacks for earphones and mic).