Key Features Build to Last: The product is made of high-quality ABS, which is corrosion-resistant, waterproof, not easily deformed or faded. High Efficiency: The maximum output power of this product can reach 3000W and can be used in an area of 3.28 to 9.84 feet. It can temporarily incapacitate fish and improve fishing efficiency in a short time. Adjustable Design: The product uses advanced numerical control technology combined with computer programs to form a unique secondary output structure, with adjustable duty ratio and frequency that do not affect each other, and can be adapted to different scene requirements. Safe Use: The product has low and high voltage protection, overload protection, over-temperature protection, short circuit protection, reverse polarity protection, and waterproof protection, which can fully ensure your safe use. Portable & Lightweight: The small size (6.1*5.12*2.36in) and lightweight weight (1.54 lbs) allow you to easily carry it to different locations for use. Application This product can be applied to freshwater such as ponds, rivers, and lakes, and is suitable for fish sampling, fishing, aquaculture, fish transplantation, and other places. Specification  Material: ABS Color: Blue Control Mode: Button Cooling Method: Built-In Fan Display Type: LED Transformer Type: Pure Copper Transformer Compatible Battery: 12V DC (Any Model) (Not Included) Input Voltage: 12V DC Nominal Range (9.8-14V DC) Input Current: 10-120A Output Voltage: Pulse 900V AC Max. Output Power: 3000W Working Power: 1500W Pulse Width: 1-12% Adjustable Output Frequency: 20-120Hz Adjustable Output Waveform: Sine Wave Low Voltage Protection: ＜9V DC High Voltage Protection: >15V DC Over Temperature Protection: ≥ 85℃185℉ Effect Range: 1-3m/3.28-9.84ft Product Size:15.5*13*6cm/6.1*5.12*2.36in Package Size: 25*18*9cm/9.84*7.09*3.54in Gross Weight: 0.8kg/1.76lbs Net Weight: 0.7kg/1.54lbs Package Included 1 * Ultrasonic Inverter Notes 1.This product does not include the power supply required for the driver. Please bring your power supply. 2.Please wear protective gear such as insulated gloves and boots (not included) when using this product. 3.It is suggested to use high voltage for deep water and low for shallow water to achieve the goal of energy conservation. In theory, the larger the battery capacity, the longer the running time. 4.This product is not recommended for non-professionals to use.