Noontec Noise Cancelling Over-Ear Headphones The Noontec Hammo GO presents a new design of noise-cancelling headphones which comes equipped with an advanced external noise-blocking technology. It filters out the noises you don't want like a busy street, an airplane drone or even the office room chatter. Get great sound clarity that blurs the difference between live music and recorded ones, with the updated SCCB acoustic technology which recreates an extremely realistic representation. Top-notch Votrik are the pillar that brings a more vibrant sound to you. It features a special cavity design that differs from the others and uses high density material that reduces cavity vibrations, leading to a purer sound. The Noontec Hammo GO will impress you with its perfect balance between treble, mid-ranges and bass, ensuring truly natural transitions. Experience the meaning of comfort with this headphone's lightweight and ergonomic structure. The ear cups are rotatable for a better fit. Made of protein cotton, the ear muffs are durable, breathable and hypoallergenic - great for everyone. AAA batteries are compatible with the Hammo GO. These headphones can be used either wireless or wired so you can enjoy your music even if the batteries run out. Being foldable and portable, you can take these headphones anywhere. Answer calls easily while you're in the midst of listening to your favorite jams. The best part? These headphones are compatible with most mobile phones including those using iOS, Android and Windows mobile.