[SUPER STEREO SOUND,EXTRA BASS] Bluetooth headphones, equipped with the latest Bluetooth 4.1 wireless connection technology,It reduces ambient noise, balances the treble / mid tone / bass, Provides rich and dynamic sound quality, gives excellent music & calling experience, Also nice gaming headset. [DUAL MODES, WIRELESS & WIRED] Headphones over-ear,Built-in lithium ion battery 400mAh, fully charged in 3 hours and 8 hours of music playback. In addition, if the battery is low, with a 3.5 mm audio cable jack, this headset can be used as wired headphone. Therefore, you can easily switch the modes according to your needs. [FOLDABLE AND PORTABLE DESIGN] Wireless headphones, with adjustable headband, suitable for different head sizes, can be folded and stored compactly in the attached storage bag, so it can be carried without taking up space, exquisite foldable headphones with microphone. [COMFORTABLE WEARING] Noise canceling headphones, ergonomic soft silicon head belt is optimal for long time use, customer-thinking and using design. Employing a structure in which the ear pad collapses inward, it realizes comfortable wearing property and high airtightness that envelop the ear. [2-YEAR WARRANTY] As a responsible manufacturer seller, aiming at providing satisfying products and services to our customers. Offer you a 2-Year warranty. Please do not hesitate to contact us by sending emails if you have any problems.