PRODUCT FEATURES:   1).  Bluetooth V4.1 CSR8615 Chipset: The Bluetooth 4.0 CSR Chipset, Lower Power Consumption, Superior Compatibility, Compatible For Almost All The Mobile Phone, Tablet PC, Notebook, Any Devices With Bluetooth Function Or Has A 3.5mm Audio Jack.   2). HiFi Powerful B Stereo Sound Effect: 40mm Titanium Diaphragm Speaker Drivers, Tuned By Professtional Team,  Deep B Stereo Sound, Enjoy The Wireless High Quality Music..   3). Integrated With Delicate Mutal-functions Control Panel, Functions Including: Songs Switch, Volume Control, Play / Pause, Answer Incoming Phone Calls, etc...   4). Built-in Concealed High Definition Sensitive Microphone, The Headphone Itself Has A Answer Incoming Phone Calls' Button To Pick Up Phone Call, Wireless Handsfree Talking.   5). CVC6.0 Noise Cancelling: Acoustic echo cancellation and noise reduction effectively reduce ambient noise while talking, make far-end listener cannot hear what you said become history, just like talking face to face.   6). AUX Line-in Music Play Mode: Has A Standard 3.5mm Audio Jack Support Line-out Play Mode, You Can Use 3.5mm Audio Cable Connect To Headphone To Listen To Music Even Your Phone Don't Have Bluetooth Function Or The Headphone Is Out Of Power.   7). Comfortable Wearing Experience: Foldable Design, The Headphone Is Super Lightweight, Based On Ergonomic Design, Earmuffs Are Made Of Soft Breathable Protein Leather, Providing You Comfortable Wearing-on Experience.     Shipping and PackagingAll items will be double checked and well packed before sending.Items will be dispatched within 1 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for remote areas,it may take a little longer). Special Announcement:Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resolve the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .ReturnIf the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us FIVE-star Positive Feedback for the transaction.