Linner NC80 Bluetooth Active Noise Canceling On-Ear HeadphonesBrand New, Factory Sealed About this itemProfessional Active Noise Cancelling - Hear what you want! Advanced active noise cancelling technology makes you focus on your music world without interference. Medium/High noise cancelling mode allows our Bluetooth headphones reduce background noise up to 35dB.of the outside noise, allowing you to enjoy music or make clear phone calls on subway, bus, plane and other noisy surroundings.Smart Listening and Touch Control - Just easily put a finger on the right ear cup, you can communicate without taking your headphones off. The touch control panel enable users to choose settings and adjust the volume conveniently.High Quality Sound and Bluetooth - Our Bluetooth headphones has been certified by JAS Hi·Res Audio. Its voice is clear and undistorted. The stable signal of Bluetooth v4.1 enables professional sound cavity structure to provide mega bass and clear mid tones, bringing you a great music enjoyment.Comfortable to Wear - More durability and comfortable 90° Swiveling soundproof skin-friendly ear cup of noise cancelling headphones makes you enjoy high-quality music for a long time.Long Battery Life & Fast Charging - Ultra long battery life allows the Bluetooth headphone to play the music up to 34 hours with only 2.5 hours charging, which make our Bluetooth headphone more suitable for use. LINNER provides 12 months hassle-free warranty to ensure the enjoyment of your purchase.