1Made of high quality ABS material, this fish finder is sturdy and durable. 2With this product, you can easily get the information about the fishes' location and sizes, as well as depth and bottom contour of underwater. 3Comes with wide depth range and wireless operating range. 4White LED backlight design for clear display at night. 5Suitable for lake and sea fishing, a great choice for you. This fish finder is made of high quality material, characterized by wide depth range and wireless operating range. It allows you to instantly capture the fish without watching the float for a long time. A great choice for you. Features: Made of high quality ABS material, this fish finder is sturdy and durable. With this product, you can easily get the information about the fishes' location and sizes, as well as depth and bottom contour of underwater. Comes with wide depth range and wireless operating range. White LED backlight design for clear display at night. Suitable for lake and sea fishing, a great choice for you. Specification: Condition: 100% Item Type: Fish Finder Material: ABS Battery: 4 * AAA Battery (Not Included)Display Size: 58 x 45mm/2.3 x 1.8in Working Time: 5 Hours Depth Range: 0.6-36m Sonar Frequency: 125KHZRadiation Angle: 45Sonar Beam Angle: 90 Wireless Operating Range: 100m Working Temperature: -20 - +70 Host Size: Approx. 12.5 x 7 x 3cm / 4.9 x 2.8 x 1.2inch Sensor Dia: Approx. 7cm / 2.8inch Sling Length: Approx. 41.5cm / 16.3inch Charge Cable Length: Approx. 1m / 39.4inch Weight: Approx. 438g / 15.4oz Package List: 1 * Wireless Receiving Host 1 * Wireless Remote Sonar Sensor 1 * Sling 1 * Charge Cable 1 * Antenna 1 * User Manual