The black HPH-150B Open-Air Stereo Headphones from Yamaha are open-air headphones with a neutral tone palette that is ideal for listening to digital musical instruments. The HPH-150B is designed with 40mm-diameter drivers in a rear-vented format. These headphones feature soft, lightweight velour earpads, a swivel mechanism that allows the driver unit to turn up to 90° to fit the angle of your ears, and a length-adjustable headband. The HPH-150B utilizes a single-cable configuration that prevents clutter around your neck. The 6.6' cable terminates in a 1/8" stereo plug; a 1/4" adapter is included to allow you to plug these headphones into a range of instruments.
Open-air headphones can easily leak sound due to their design.