(Red) OnePlus 3 Aluminium In Earphones/Headphones 3.5mm Jack With Microphone ONX3 Compatible with all 3.5mm devices i.e smartphones, MP3 players, laptops & PCs. Fitted with a microphone perfect for making and recieving calls. Amazing sound quality with bass boost. Soft earbud that mould for a perfect fit in your ear. Great build made from high grade aluminium .