Features: Powered by rechargeable two 2000mAh lithium batteries. 2.4inch TFT color LCD, pixels: 240V * 960H. 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