Clear, powerful bass. Our intelligent power management achieves excellent bass performance. The noise cancellation ensures a pure, clear sound. IPX7 Waterproof: The speakers in the Lineup series are not only dustproof but also waterproof according to IP67 standards. Bluetooth 5.0: Bluetooth 5.0 offers fast transmission and is compatible with Android and iOS devices, tablets, and computers, making it ideal for listening to music, gaming, enjoying movies, and more. Powerful Surround Sound: Outstanding stereo sound is delivered by high-quality hardware featuring 2 full-range drivers and bass radiators. Versatile: The Concert Lineup Speaker supports connections via Bluetooth, Micro-SD card, and AUX input. Indoor & Outdoor: Appropriately sized with a carrying strap for both indoor and outdoor use. Design Type: Bluetooth speaker. Storage Support: Up to 32 GB Micro-SD card. Battery: 2 built-in high-capacity batteries. DC5V-2A charging via USB-C charging port. Specifications: Drivers: 2 x 52 mm electrodynamic full-range drivers, 2 x bass radiators. Frequency Range: 80 Hz-20 kHz. Bluetooth 5.0. USB Specs: USB 2.0, compatible with USB 1.1. Dimensions: Size: 215 x 110.6 x 67 mm. Weight: 970 g.