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 transmiion. Dual Mode & Never Power Off The wirele 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. Profeional Quality Sound Enjoy superb balanced sound and supreme comfort. Large 50 millimeter speaker unit drivers combined with neodymium magnets provides stereo sound, powerful ba, 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. Specification Model name: Studio Wirele C(Pro C)Bluetooth Protocols: HFP/HSP/A2DP/AVRCP Driver: 50mmMagnet Type: NeodymiumAudio Output: Wirele/WiredImpedance:32Sensitivity:1103dBBattery: 1000mAhCharging Time:2.5HrsMusic play time: 110HrsEffective transmiion range: 10m