Material: ABS Size: 12.5*6.3cm/4.92*2.95in 1 Battery: 3.7V 1000MAh 2 Screen: 2.4-inch TFT 3 Use time: 5 hours 4 Water depth detection: 0.6-40 meters 5 Sonar frequency: 125KHz 6 Detection distance: 100 meters 7 Working temperature: -10-70° Product features: 1. Wireless Connectivity: Convenient and fast, no need for cumbersome cables, easily detect fish anywhere, anytime. 2. High Definition Image Quality: High-definition underwater visual image, clearly display underwater situations, helping you effortlessly capture your target. 3. Ultrasonic Technology: Using ultrasonic waves to find fish, high precision, making fishing simpler and more fun. 4. Lightweight and Portable: Portable design, easy to carry, allowing you to enjoy fishing fun anytime. 5. Multi-functional Application: Not only for fishing, but can also be used for underwater adventure exploration, making your fishing trip more fun. Package includes: 1 pc Fish Finder