MoGo Talk XD Bluetooth Headset and Protective Charging Case for iPhone 3G and 3GS (Black) Exclusive custom designed iPhone case with integrated Mogo Talk XD headset Talk time up to four hours with standby time of one week SmartAudio speech enhancement for clear crisp calls SoundShape eartip design blocks up to 15dB of ambient noise and provides a comfortable customizable fit Patent pending low profile folding boom that lets the earpiece fold flat for store and charge