1. The flap structure with a built-in assist spring ensures smooth opening and closing of the flap, and the structure is durable 2. The front end has a snap button for opening and closing. When closed, it seals tightly, and it wont automatically pop open even during rough sailing, providing better protection and sealing performance 3. High-strength waterproofing, preventing waves and rain splashes, and avoiding water ingress and short circuits 4. Rubber gasket, anti-slip and wear-resistant, enhancing sealing performance 5. Used to isolate seawater, moisture, and salt fog erosion, extending the overall lifespan of the audio equipment 6. Material: ABS 7. Size: about 23 x 10.2 x 4.5 cm
