Compatible with: DeWALT 20v Max including 20-60v Flexvolt Battery. Plug in your own battery to enjoy the ultimate stereo sound! Disclaimer: This product is NOT an original DEWALT item. Effortless Connectivity: Speaker supports two types of connection. Bluetooth 5.3 ensures rapid & stable pairing with your devices. Strong connection is guaranteed up to 52 ft. USB audio source is also supported. Simply plug-in the USB disk into the USB-A port for music playing. Compact Size + Astonishing Sound: Come with compact size, provide strong and powerful sound at the same time. With a press of the button, the speaker will liberate deep, rich and clear sound with zero distortion through the 20W built-in speaker. It's small and light enough to take it with you anywhere! Dual Speaker Connection: The speaker support TWS function which enable two Bluetooth speakers to be connected simultaneously. Let’s create different atmosphere and full of enjoyment! Whether at work, camping or anywhere you need it for! Ultimate Play-Time: The speaker utilize external battery pack which offer much more battery life than normal built-in battery. Moreover, it can be your power bank when you need charging while playing music. The speaker will automatically shut down if the battery voltage is below 15.5v to prevent any overload damage. Warranty & service: 12-Month warranty and 24/7 customer service. Please feel free to contact us if there is any issue about the product. Bluetooth Speaker Compatible with DeWALT 20v Max Battery