audio technica / ATH-ANC7b

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These are noise-canceling headphones.

■Active Noise Cancelling Headphones
■Shut out ambient noise whether you're on a vehicle or in the office. These active noise cancelling headphones combine high-precision noise cancellation with high-quality sound.

■High-precision ANC circuitry reduces ambient noise by over 85%.
■High-quality φ40mm drivers specially designed for noise cancellation.
■Newly developed low-rebound ear pads provide a comfortable fit and a sealed feel.
■Two cord lengths available: 1.0m and 1.6m, depending on the situation.
■Ensure quiet by using only the noise cancellation function without the cord.
■Features a through function that allows normal use even when the battery runs out.
■Includes a convenient, foldable carrying case.
*Aircraft conversion adapter: May not be compatible with some aircraft equipment.
*This adapter is for use with this unit only. Do not use with other headphones.

■Type: Closed dynamic
■Driver: φ40mm
■Frequency response: 10-25,000Hz
■Noise cancellation level: Maximum -22dB (""Up to 20 dB"" indicates an average value)
■Output sound pressure level: 109dB/mW (with noise cancellation enabled)
■Impedance: 300Ω (with noise cancellation enabled)
■Weight (excluding batteries and cord): Approximately 210g
■Power supply: DC 1.5V (1 x AAA alkaline battery)
■Battery life: Approximately 40 hours (varies depending on usage conditions)
■Accessories: Dedicated headphone cord 1.6m (φ3.5mm gold-plated stereo mini L-type), 1.0m (φ3.5mm gold-plated stereo mini L-shaped), φ3.5 to φ6.3mm conversion adapter (gold-plated plug), conversion adapter for aircraft (gold-plated plug), AAA alkaline battery (for operation check), dedicated carrying case