Natural Talking Sounding Audio You will get the hear-and-be-heard advantages of a upgraded OneOdio bluetooth headphones, thanks to advanced CVC 8.0 undirectional noise reduction microphone technology and fast stable Bluetooth V5.2 transmission. Dual Mode & Never Power Off The wireless mode: A built-in 1000mAh battery provides up to 110 hrs play time in a single charge. Wired mode: you can also use it as a wired headphone with the provided audio cable so the headphones will never power off. Professional Hi-Res Audio Enjoy superb balanced sound and supreme comfort. Large 50 millimeter speaker unit drivers combined with neodymium magnets provides stereo sound, powerful bass, clear vocal, and crisp high tones form perfect balanced sound. Maximum Comfort & Space Saving Over ear ergonomic designed memory ensure 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 For 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. Specifications Model name: Studio Wireless C(Pro C) Bluetooth Protocols: HFP/HSP/A2DP/AVRCP Driver: 50mm Magnet Type: Neodymium Audio Output: Wireless/Wired Impedance32 Sensitivity1103dB Battery: 1000mAh Charging Time2.5Hrs Music play time: 110Hrs Effective transmission range: 10m