ATH-ANC33iS QuietPoint® Active Noise-Cancelling In-Ear Headphones reduce distracting background noise by up to 90% while offering the superior sound that makes Audio-Technica a world-leading pro audio company.


Engineered to create a comfortable listening environment in areas with high ambient noise, these in-ear headphones feature a miniature microphone in each earpiece that picks up ambient noise (such as traffic, air-handling systems, etc.). Electronics in the QuietPoint control module create a noise-cancelling wave that is 180° out of phase with the ambient noise. This wave acts like a noise eraser: it cancels out the annoying sounds that surround you without diminishing the audio you want to hear. The result is a peaceful enclave to enjoy the music or movies of your choice.


• Ultra-compact in-ear design is ideal for travel

• Advanced electronics cancel up to 90% of background noise

• Innovative ANC circuitry delivers an exceptionally pure audio signal in noise-cancelling mode

• Inline microphone and controller for answering calls and controlling music

• QuietPoint control module offers on/off switch, volume control and clothing clip

• Included ComplyTM Foam Tips comfortably seal the ear canal for outstanding noise isolation and retention

• Audio functions (in passive mode) even without battery


Type Active Noise Cancelling
Driver Diameter 13mm
Frequency Response 20 - 20,000 Hz
QUIETPOINT® Active Noise Reduction Maximum 20dB
Sensitivity 105dB
Impedence 32Ω
Battery AAA (alkaline)
Battery life Up to 60 hours, typical (alkaline)
Weight 26 g (0.9 oz) without battery
Cable 1.3 m (4.3') with 3.5 mm stereo mini-plug
Accessories Airline adapter; AAA battery; protective pouch; Comply™ Foam Tips (1 pair); ear pieces (rubber tips) (S/M/L size)