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REVIEW: 233621 H300 ANC Noise Cancelling Headphones!

308 views · Published 1 May 2017 · 5:36 · Indexed 25 October 2026

Channel: OSReviews · 2017 · Science & Technology

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We review the 233621 H300 Active Noise Cancelling Headphones. 
Find it here: http://amzn.to/2pNwjYq

Details: 
Super adaptability: whole environment intelligent noise reduction, effectively reduce wind noise, reject noisy outdoor environment.
Perfect Sound: with a diameter of 40 mm driver unit and frequency response equalization.
Wearing comfort: The adjustable headband and large soft artificial protein leather ear pads , breathable, the same with human skin texture, comfortable.
Easy to carry: rotatable and foldable 90 degrees, easy to carry and store.Flat audio cable: Separable flat cable, Minimizing entanglement, easier to use.

Product: H300 
Color: Black 
Earphone Type:With wire 
Speaker: Yes 
Dive Unit: 40mm 
Jack Dimension: 3.5mm
Output Resource: HiFi 
Wire Length: 1.2m 
Sensitiveness: 111dB+/-4; 
Frequency range: 8Hz-22000Hz 
Intelligent Noise Reduction: 20dB 
Passive Noise Canceling: 35Db 
Distortion Factor:94dB, 1KHz
Impedance: 100 ohm (non-noise cancelling mode) 300 ohm (noise cancelling mode) 
Battery Installation
Spin the cover on right ear counter clockwise to open it, and install 7A battery as symbol. Spin the cover clockwise to cover it with aid of 2 metal bump

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