The Green Lion Denali 20 Portable Speaker in black provides high-quality sound performance together with robust construction. The system produces powerful sound through its 20W output, which lasts for 4.5 hours because of its 3600mAh battery. The speaker achieves IPX7 waterproof protection, which makes it suitable for outdoor activities at the beach and poolside and during rainy conditions. The device provides Bluetooth V5.4 connectivity, which functions within a 10-meter range and allows users to connect two speakers through TWS mode for stereo sound. The AUX and USB inputs provide multiple connection methods that support different types of devices. The USB-C charging port enables users to recharge the device within 2.5 hours, while the RGB lights create an entertaining visual display. The Green Lion Denali 20 includes a shoulder strap, which makes it simple to transport powerful sound capabilities wherever you choose to go.