Fish Finders LUCKY FF718D-Ice 2.2 This amazing product is especially designed for ice fishing. Features: 2.2 inch high-contrast Dot matrix FSTN LCD, pixels: 128V * 64H. Depth readout range up to 328ft / 100m and display bottom changing contour. Dual frequency: 60°@-10db in 83Khz/20°@-10db in 200Khz. High / low sensitivity setting, audible alarm of fish and water depth. Water temperature and battery indicator. 3 languages for choice: English, German, Russian. With alarm and adjustable chart speed, sensitivity level setting, depth range setting. Built-in memory stores sonar setting when the unit is turned off. Specification: - Host Display: 4-level grey, 128V x 64H Display Size: 41 * 48 mm (1.61" * 1.89") Back Light: ON / OFF white LED Zoom: OFF / 5m / 10m/ 20m / 30m / 40m / 60m / 100m Depth Alarm: OFF / 5m / 10m / 20m / 30m / 40m / 60m / 100m Chart Speed: 4 levels Power Requirement: 4 * AAA battery (not included) Depth Unit: ft/m Temperature Unit: â„?/ â„?Waterproof Rating: IPX4 (Spray waterproof) Language: English, German, Russian Operating Temperature: -10~+50â„?Size: 122 * 75 * 31mm / 4.8 * 3.0 * 1.2in - Transducer Depth Capacity: 100m / 328ft Operating Frequency: 60°@-10db in 83Khz/20°@-10db in 200Khz Size: 177 * 56mm / 7.0 * 2.2in Weight: 210g / 7.4oz Package Size: 26 * 17.3 * 6.2cm / 10.2 * 6.8 * 2.4in Package Weight: 562g / 1.24oz Package List: 1 * Professional Dot Matrix Wireless Fish Finder 1 * Wired Transducer 1 * Neck Strap 1 * User Manual (English) 1 * User Manual (Russian)