Sony ZX310 On-Ear Headphones – Black Key Features 30mm Drivers Adjustable headband 1.2m cord length Y Shape cord. 3.5mm jack connection Overview Theses lightweight on-ear headphones from Sony have a compact folding design, making them ideal for putting into a bag and taking with you. The 30mm drivers provide crisp sound with powerful bass. Metallic earcups with comfortable padded earpieces ensure you can enjoy your music for longer. There is no need to worry about external noises interrupting your listening experience as the ZX310’s provides excellent sound isolation.