COWIN E7 Active Noise Cancelling Headphones Bluetooth Headphones with Microphone Deep Bass Wireless Headphones Over Ear, Comfortable Protein Earpads, 30 Hours Playtime for Travel/Work, Black Color::Purple 75cm Not sure which is

75cm Not sure which is the right size for you

KINDLY REFER INSTALLATION MANUAL BEFORE USE

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detailed information on battery and power conditions

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COWIN E7 Active Noise Cancelling Headphones Bluetooth Headphones with Microphone Deep Bass Wireless Headphones Over Ear, Comfortable Protein Earpads, 30 Hours Playtime for Travel/Work, Black Color::Purple 75cm Not sure which isProfessional Active Noise Cancelling Technology. Significant noise reduction for travel, work and anywhere in between. Advanced active noise reduction technology quells airplane cabin noise, city traffic or a busy office, makes you focus on what you want to hear,enjoy your music, movies and videos. The noise cancellation function can work well both in wire and wireless mode. Proprietary 40mm Large aperture Drivers. Deep, accurate bass response. The