Advanced Sonar Technology - The for Erchang F68 Fish Finder is a state-of-the-art sonar device that utilizes both 125kHz and 330kHz frequencies to provide a comprehensive underwater view. This dual-frequency capability allows for a more detailed and accurate representation of the underwater environment, making it easier to locate and identify fish. The 45 sonar coverage ensures a wide field of view, while the 0.6-73 meter detecting range caters to a variety of fishing scenarios, from shallow waters to deep-sea exploration. Versatile and User-Friendly - Designed for both freshwater and saltwater fishing, the for Erchang F68 is a versatile tool for anglers. Its wireless Bluetooth connectivity allows for seamless integration with Android and iOS devices, enabling users to access real-time data and adjust their fishing strategies . With a user-friendly interface available in multiple languages, the device is accessible to a broad audience. The long-lasting 5-hour battery life ensures that you can enjoy your fishing adventures without worrying about power interruptions. Optimized for Diverse Fishing Conditions - Whether you're fishing from the shore, on a boat, or through the ice, the for Erchang F68 is your reliable companion. Its compact and portable design makes it easy to cast and retrieve, making it ideal for boat fishing, ice fishing, and shore fishing. The device's light for fishing lure feature is an added bonus, attracting fish and enhancing your chances of a successful catch. With its robust construction and components, the for Erchang F68 is designed to withstand the rigors of fishing conditions, ensuring that you can rely on it season after season. Sonar Coverage: 45 Detecting Range: 0.6-73 Meter Bluetooth Connectivity: Yes Battery Life: 5 hours fully Sonar Frequency:125khz/330khz Working temperature:-10 degrees-50 degrees Working current:200mA Charging current:DC5V Power supply: 500mah polymer battery Wireless operation range:100m Colour:As Shown Material:Plastic Package Contents: 1 * Fish Finder 1 * USB Cable 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.