This amazing product is especially designed for amateur and professional fishermen alike, to find out the location of fish, depth and bottom contour of water. The unit can be used in ocean, river or lake and is fantastic for detecting schools of fish in any particular area. (Due to different product batches, the appearance , which does not affect the use) Features: Wide and clear LCD display. Depth readout from 0.6 to 100m. Fish alarm. Battery save mode. Selectable sensitivity. Fish depth scale. Water temperature indicator. Water- design. Specifications: Display type: TN/ANTI-UV LCD Display size: 4.3 x 4cm / 1.7 x 1.6inch Backlighting: White LED Power supply: 4-AAA alkaline batteries (Not included) Sensor beam angle: 45 degrees Depth range max: 100M / 328Ft Depth range min: 0.6M / 2Ft Operational temperature: (-10-70℃) Main body size: 12 x 7 x 2.5cm / 4.7 x 2.8 x 1.0inch Main body weight: 119g / 4.2oz Color: as shown Material: Plastic Package Contents: 1 * Fish Finder 1 * Round Transducer with 25ft Cable 1 * Transducer Adapter 1 * Stainless Bolt 1 * Stainless Wing Nut 1 * Neck Strap 1 * User Manual (English) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.