BLUETOOTH V4.1: The latest Bluetooth 4.1+EDR technology provides lower power consumption and wider compatibility. You could enjoy your smart phone music or handsfree calling in premium-quality sound.
MULTIFUNCTIONAL BLUETOOTH RECEIVER: Upgrade your wired speakers, headphones, earbuds and car stereo to wireless bluetooth device with advanced bluetooth V4.1. Then you could enjoy the wireless music playing from your smartphones, tablets, iPads, etc.
CONNECT WITH TWO SMART PHONES: BESIGN BK05 Portable Bluetooth Receiver can connect two Bluetooth devices at the same time. And it also could compatible with most smartphones and Bluetooth electronics, ideal for home or vehicle audio systems and wired headphones (connected with Besign BK05 via 3.5mm audio cable/adapter then pair your phone with BK05 to achieve listening music or answering call).