1. PPS 8 Exclusive Acoustics Technology - Want your music to be deep powerful and balanced? Bluedio exclusive PPS 8 technology makes it come true. With the new innovative 8-driver design every frequency is accurately reproduced for a full-range listening experience.</br>2. 3D Surround Effect - Dramatically enhancing your music doesn't have to be complicated. Simply turn on the 3D surround effect you'll experience something entirely new-a virtual 360? surround sound from the built-in 3D DSP processor as if in a concert hall.</br>3. 24-bit High Fidelity - Optimized for high-fidelity sound the high-resolution Bluetooth decoder achieves a remarkable new level of speed: up to 24-bit signal processing. It helps reproduce abundant details let you hear new details and nuances even in your most-played favorites.</br>4. Top Aviation Material: Al-Ti Alloy - UFO is beautifully crafted with the top-notch aviation material: Al-Ti alloy which features high strength performance with extreme lightweight (just 337g).Unbreakable durable and drop resistant. Absolutely secure.</br>5. Latest Bluetooth 4.1 Chip - The Bluetooth 4.1 is the latest version released from SIG?? vastly improved in energy savings. The rechargeable lithium-ion battery charges in just 3 hours with the included USB cable?? and delivers up to 25 hours playing time per charge.</br></br>Product Description</br></br><B>Bluedio U (UFO)</B>Premium Wireless Headphone is first and foremost committed to one thing: the superb sound?? achieved by Bluedio exclusive"8 acoustics technology and the built-in DSP processor. And its incredible 25 hours battery life is ensured by the latest Bluetooth 4.1 low-power technology. Furthermore?? UFO is beautifully crafted with top notch aviation material: Al-Ti alloy?? sturdy enough to be durable for long periods of time. Altogether?? Bluedio U (UFO) redefines what reference-level wireless audio is all about. <br> <br><B>About Bluedio</B> <br>Bluedio is a pioneer in portable audio device?? providing solutions to professional audio and wireless communication. Bluedio always strives for perfection?? fashion and simplicity?? focusing on revolutionary innovations. So far?? Blue