[IMMERSIVE STEREO SOUND]: Dual 5W speakers and dual diaphragms deliver high-definition audio quality for a rich listening experience, perfect for music lovers.[ENHANCED BASS PERFORMANCE]: Unique bass enhancement technology and symmetrical magnetic circuit produce powerful and dynamic bass, elevating your music to the next level.[RUGGED WATERPROOF DESIGN]: IPX5 waterproof rating makes it ideal for outdoor sports and activities, providing worry-free usage in various environments.[VERSATILE PLAYBACK OPTIONS]: Connect via Bluetooth, 3.5mm aux input, or insert a memory card for convenient audio playback in multiple formats and devices.[LONG-LASTING BATTERY LIFE]: Built-in 1500mAh battery ensures up to 4 hours of continuous playback, making it perfect for extended outdoor .