Adesso Bluetooth 3.0 Portable and Foldable Headphone with Microphone for Smartphones, iPhone, iPad with iOS Battery Indicator - Retail Packaging - Black/Red Foldable Headset: Compact, space saving foldable headset design stores easily and travels anywhere you go in a lightweight yet protective case. 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. Travel Pouch: Provides protection to be able to travel safely and securely without any worries of damaging your device while in your purse, backpack, briefcase or luggage. iOS On-screen battery indicator Bluetooth 3.0 Wireless Technology Built-in Rechargeable Battery with iOS Battery Indicator Built-in Microphone Travel Pouch Foldable Headset