Feature: 1. 0.8-60 meter (2-196.8 feet) depth detection underwater. 2. BT 4.0 connection with your smartphone, wireless transmission range up to 25m (27 yards). 3. Two beam frequencies: 45° angle in 125KHz, 14° in 330KHz. 4. Built-in fish lure light attracts fishes. 5. 5 hours of runtime with 500mAh rechargeable li-ion battery. 6. Great for on shore fishing, ice fishing, boat and kayak fishing. Specification: Features: 0.8-60 meter (2-196.8 feet) depth detection underwater. BT 4.0 connection with your smartphone, wireless transmission range up to 25m (27 yards). Two beam frequencies: 45° angle in 125KHz, 14° in 330KHz. Built-in fish lure light attracts fishes. 5 hours of runtime with 500mAh rechargeable li-ion battery. Great for on shore fishing, ice fishing, boat and kayak fishing. Specifications: Material: ABS Sonar Frequency/Angle: 125KHz/45°, 330KHz/14° Detection Depth: 0.6 - 60m / 2 - 196.8ft Wireless Range: 25m / 27 yard Battery: 500mAh li-ion battery Working Time: Max. 5 hours Working Temperature: -10~50℃ Size: 68.5 * 64mm / 2.7 * 2.5in Weight: 90g / 3.2oz Package Size: 165 * 98 * 135mm / 6.5 * 3.8 * 5.3in Package Weight: 380g / 13.4oz Package List: 1 * Sonar Sensor 1 * Charging Cable 1 * Storage Pouch 1 * Carry Case Package List: 1 * Sonar Sensor 1 * Charging Cable 1 * Storage Pouch 1 * Carry Case