AGPTEK Streambot Bluetooth 4.1 Receiver, Hands-Free Car Kits, Mini A2DP Wireless Bluetooth Adapter for Home Audio Music Streaming System/Car Stereo Supporting Two Phones and iOS/Siri Two-link: can connect two Bluetooth devices at the same time. Over length receiving distance, can reach up to 30 feet in open space without cables Longer playing time: Extra-long built-in battery provides up to 10 hours playing time and it can be using while charging .Note: most of the reciever on the net do not have this function Simple operation: Make your home's stereo streaming system becomes Wireless Bluetooth speaker magically, it can switch music and calling easily which makes your driving safely and provide you super clear conversation effect. An ideal choice for vehicle mounted systems High sound quality: CSR4.1 bluetooth chip can isolate other nearby wireless signal and guarantee you can enjoy high quality stereo audio through Bluetooth electronics. Built-in microphone picks up your voice with clarity so you can chat without problems Support IOS /SIRI: Answer/End/Reject/Redial a call, play/pause music, adjust volume. And it also support the phone's IOS and SIRI fuction