The Craig CMA3568-BK Portable Speaker With Bluetooth Technology makes it easy to connect your smartphone or other Bluetooth-enabled device. It uses a fully integrated Bluetooth wireless connection to ensure strong, solid connections. You can answer calls through the speaker with the hands-free phone answering function. This wireless portable speaker also features a 3.5mm AUX-in cable, ensuring that you can connect all of your favorite devices with a wired cord if desired. It has a relative transmission distance of approximately 32' so that you can move away from the receiver and remain connected. The easy on/off switch on this Craig Portable Speaker helps for simpler operation.