1. 5in Monitor: 5 inch IPS full view screen with high definition, has sun visor for bright environment outside, you can clearly see the image. 2.Fish finder is made of ABS, IPS and aluminium alloy material, IP67 waterproof, high strength and . 3. Rechargeable Battery: Underwater fish finder builts in 8000mAh rechargeable battery, use time can last 68 hours, can be powered by 5V/1A mobile power supply. 4. Easy Installation: Fish finder video is easy to fix on rod, with approx. 30m/32.8yd cable, convenient for using, give you a pleasant fishing experience. 5. Wide Application: Portable fish finder is suitable for sea fishing, ice fishing, lake fishing, boat fishing and other underwater expeditions.