Natural Talking Sounding Audio--You will get the hear-and-be-heard advantages of a upgraded OneOdio bluetooth headphones, thanks to advanced CVC 6.0 undirectional noise reduction microphone technology and fast stable Bluetooth V4.1 transmission. Dual Mode & Never Power Off--The wireless mode: A built-in 500mAh battery provides up to 30 hrs play time in a single charge; The Wired mode: you can also use it as a wired headphone with the provided audio cable so the headphones will never power off. Professional Quality Sound--Enjoy superb balanced sound and supreme comfort with the OneOdio wireless/wired bluetooth headphones. Large 50 millimeter speaker unit drivers combined with neodymium magnets provides stereo Hi-Fi level sound, powerful bass, clear vocal, and crisp high tones form perfect balanced sound. Maximum Comfort & Space Saving--Over ear ergonomic designed memory-protein memory earmuffs simulate to human skin texture, ensuring long lasting comfort.The foldable Headband is not only designed for saving your desk space but for carrying in the provided carrying bag. Works With: iPad, iPod, iPhone, Android and many other audio devices. High-quality sound, supreme durability, and maximum comfort. These are the headphones you've been looking for.