Flymemo X5 1020mAh Portable Wireless Bluetooth Speaker,Music Streaming & Hands-Free Calling, 6W 40mm Driver, Built-in Mic, 3.5mm Audio Portable Rechargeable Battery Black The water cube delivers powerful sound. It's easy to enjoy soaring highs and deep booming bass, wireless and cord-free. Totally light and Portable, the carry case comes with a handy carabiner to attach it easily to your backpack. Bluetooth and internal microphone makes talking on the phone easy and clear. Reverse Charging Of Mobile Devices Via USB-A Port. Sync two water cubes by tapping them together to play the same song. Tap the water cubes together twice to stereo your music, making one Beats water cube the left output and the other the right or pair to a water cube XL for greater sound. Change Tracks from your phone. Or your laptop or any other Bluetooth-enabled device from up to 30 feet away. Pairing is easy tap your phone to your Beats water cube and create an instant connection.