Adesso Bluetooth 3.0 Rotatable Pivot Headphones with Microphone for Smartphones, iPhone, iPad and MP3 Players, iOS Battery Indicator - Retail Packaging - Black Rotatable DJ Pivot Headphones: Features Rotating, 180-degree DJ pivot mechanism so you can keep one ear on your music and the other on external sounds. Built-in Rechargeable Battery with iOS Indicator: The iOS battery indicator on your Bluetooth enabled device to show you in real-time how much battery life is available to prevent exhausted battery life. Built-in Microphone: Omni-directional Microphone allows you to make -flawless hands-free phone calls. Dual Mode Audio Input: You can feed audio to your headset via Bluetooth from any Bluetooth enabled device or plug in the 3.5? audio jack which then allows you to use many kinds of media devices. iOS On-screen battery indicator Bluetooth 3.0 Wireless Technology Dual Mode Audio Input Built-in Rechargeable Battery with iOS Battery Indicator Built-in Microphone