The BLUETOOTH 13B5 Core 4 is a powerful 4' Bluetooth speaker with 40W of power. It is perfect for outdoor use, as it is waterproof and portable. The speaker has a range of up to 10 meters, so you can enjoy your music wherever you go. It also has a built-in microphone, so you can take calls hands-free.

The speaker is compatible with all Bluetooth-enabled devices, so you can easily connect your phone, tablet, or laptop. It also has a 3.5mm audio jack, so you can plug in any device with a headphone jack. The speaker has a long-lasting battery, so you can enjoy your music for hours without having to recharge.

The BLUETOOTH 13B5 Core 4 is the perfect speaker for outdoor activities. With its powerful sound and long-lasting battery, you can enjoy your music wherever you go.