AmazonBasics Large Portable Bluetooth Speaker Contains two internal 5W speakers and a Built-in microphone for hands-free calls - Dimensions: 10.2 x 2.9 x 3.1 inches Connects to any Bluetooth-enabled device from up to 30 feet (10 meters) away or by 3.5mm stereo cable (not included) Up to 4 hours of wireless play on a single charge Comes with an AC power adapter for charging and constant play time PAIRING FOR THE FIRST TIME: Turn ON your Speaker and press the Function Button for 3 to 5 seconds until the LED blinks faster. Go to your Bluetooth Settings on your device (smartphone, tablet) and select Amazon_BT3 from the devices list