Home Audio Bluetooth Receiver, Jelly Comb BT CSR 4.1 Hands-Free Car Kit, Mini Wireless Adapter for Home Audio System 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 12 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 with 3.5mm auxiliary. 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. BETTER 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 /Andoid: Answer/End/Reject a call, play/pause music. What's more, It also support the phone's IOS and Android fuction,so don't miss it!