ATH-ANC23BK Active Noise-cancelling In-Ear Headphones (Black)

This is the ATH-ANC23 Active Noise-Canceling In-Ear Headphone in Black.

ATH-ANC23 QuietPoint® Active Noise-Cancelling In-Ear Headphones reduce distracting background noise by up to 90% while offering Audio-Technica's superior sound. 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 control box 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: a peaceful enclave to enjoy the music or movies of your choice.

Features:
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
Ideal for use with all audio sources, including MP3 & other portable players
Soft interchangeable ear pieces (small, medium & large) provide a custom fit
Included Comply™ Foam Tips comfortably seal the ear canal for outstanding noise isolation and retention
Audio functions (in passive mode) even without battery
Sleek control box offers on/off switch, volume control and clothing clip
Two-pin airline adapter connects to in-flight entertainment
Hard carrying case protects headphones & accessories
Y cable includes an adjustable sleeve and extension for secure, comfortable fit
A single AAA battery powers noise-cancelling electronics
Gold-plated mini-plug provides exceptional corrosion resistance, superb conductivity and low noise

Specifications:
Type: Active noise-cancelling
Driver Diameter: 12.5 mm
Frequency Response: 20 - 20,000 Hz
Quietpoint® Active Noise Reduction: Up to 20 dB
Sensitivity: 105 dB
Impedance: 32 ohms
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 Included: Airline adapter; AAA battery; protective vinyl pouch; Comply™ Foam Tips (1 pair); ear pieces (rubber tips) (S/M/L size)