XINGDONGCHI Car Kit Bluetooth Portable Multipoint Wireless Hands-free Bluetooth Sun Visor In-car Speakerphone Car Kit black The phone must be iphone and there has SIRI function Easy installation.Just attach it to your car's sun visor via its durable and magnetic clip Designed with Rechargeable Lithium -ION battery, recharges your device via USB port Available for 2 mobile phone connected simultaneously with standby mode. Connected with mobiles while this device in standby mode enables you to have hands-free calls while driving