This fish finder is designed for the liker in fishing. It can detect both fish location and fish size in both fresh and salt water, and can be used as a depth sounder.     Features:  Powered by rechargeable two 2000mAh lithium batteries.  2.4inch TFT color LCD, pixels: 240V * 960H.  Sensitivity, zoom, units, depth range, shallow alarm, language, brightness, fish icon, fish alarm and chart speed settings.  English / Russian two language options.  10-level sensitivity settings available, higher-degree sensitivity can help you get more accurate chances to detect the fish.  Built in memory stores sonar setting when the fish finder is turned off.  Screen contrast setting to ensure good display color in different environment or observation angle.  100m / 328ft depth capability.  Display underwater contour and water temperature.  With fish depth scale and audible fish alarm.  Small, medium, or big sized fish icon displays on the screen when fish is detected.  Simulation mode helps you to learn how to operate the unit before fishing.  Compact and lightweight design, easily fit in your pocket.     Specification:   -Host  Display: 2.4inch TFT color LCD, pixels: 240V x 960H  Display Contrast: 1-10 level  Backlight: White LED  Language: English / Russian  Power: 2 * 2000mAh rechargeable lithium battery (included)  Power Source: DC 10-18V  Weight: 148g / 5.22oz  Size: 135 * 70mm / 5.3 * 2.8in     -Transducer  Depth Range: 100m / 328ft  Sonar Coverage: 45° in 200 kHz  Cable Length: 8m / 26ft  Size: 47 * 37mm / 1.9 * 1.5in     Package Size: 15 *13 * 9.7cm / 5.8 * 5.1 * 3.8in  Package Weight: 613g / 1.35lb     Package List:   1 * Handheld Wireless Receiving Host  1 * Transducer with 26ft / 8M Wire  1 * USB Charging Cable  1 * USB AC Adapter Charger  1 * Vehicle Charger  1 * Neck Strap  1 * Manual