Bluetooth Receiver, YOKKAO Mini Portable Wireless Audio Receiver Adapter Stereo Music Receiver Bluetooth Car Kits Enable Siri Build-in Microphone with 3.5mm Audio Jack for iPhone/ iPad BLUETOOTH TECHNOLOGY - With V4.1+EDR technology, this Bluetooth receiver offers you 30 feet operation range with good performance. Supporting connect two Bluetooth-enabled devices simultaneously. MULTI-FUNCTION - This Bluetooth receiver built-in microphone allows you to make hands-free calls easily while driving. Turn your wired headphones, speakers, home stereo systems, car audio systems into Bluetooth-enabled devices. You can also enjoy wireless music. ENABLE SIRI - For a better IOS user experience, add the Siri function to this bluetooth receiver, activate the voice software by long press the Multi-function button. WHAT COMPATIBLE WITH - Supported all smart bluetooth devices like iPhone and Pad etc. Simple and easy wireless set-up, automatically connect,enable bluetooth on your smartphone in the settings and then power on the bluetooth receiver start pairing. WHAT WE CARE - We don't care about any profits or any earns. What we DO care about is that customers have happy purchasing experience and TRUST Yokkao brand after the first using. It is a great decision if you choose Yokkao.