Bluetooth Wireless Technology - allows you to stream all your favorite music content from Bluetooth-enabled devices in high-quality audio IPX5 Rated - water-resistant, sweat-proof, rainproof, and splash-proof High-quality sound with a clear, full sound that can fill a large outdoor area Rechargeable Battery built-in - Ensure the fun never has to stop by keeping the speaker at a full charge with the included charging cable Speaker Output: 8W Speaker Drivers: 4' Speaker Frequency: 90Hz-12KHZ PMPO Output: 8W Power: DC 5V Battery Capacity: 2,600 mAh Bluetooth Version: v5.0 IP Rating: IPX5 In the Box: USB Charge Cable, AC Adapter, User Manual, Warranty Card