Neojdx Maestro Premium Noise Cancelling Wireless Bluetooth Headphone with NFC - White Wireless Freedom - Bluetooth 4.0, NFC, voice prompts, multi-connectivity CD-quality audio - featuring the apt-X codec, active noise cancellation, active noise isolation. DDxP adaptive sound technology reads environment to provide clear voice calls and sound 14 hours use in a singe charge, Simple to use - dial button on ear cup and convenient connection with two devices simultaneously Premium materials and finish. 2 years worry free warranty when bought from authorized dealer.