mophie 2150 PowerBlu Bluetooth Headset for iPhone & Android - Black High-quality Bluetooth headset with Charging Station (900 mAh Battery Capacity) Intelligent Power-Saver Technology: Auto Standby & Auto Charge - 30h of Talk Time and 30 days of Standby Time Dual Headset Microphones with DSP Noise-Cancellation Technology Hands-free speech recognition commands with One click to activate Siri or other Phone voice applications null