Features: Portable design: Small in size, easy to hold and move, allowing you to experience the effect of electric arcs. High safety: adopting advanced electrical safety designing to ensures safety during use, suitable for household and educational purposes. Cool visual effects: capable of producing arcs light that can last for several centimeters, attracting attention and making it perfect for demonstration and interaction. Energy efficient conversion: Utilizing high-frequency and high-voltaged technology to convert low voltaged power into high voltages, making arcs more stable. Multiple operating modes: Provides multiple discharge modes, adjustable discharge frequency and intensity according to user needs, bringing different visual experiences. Quality material: Quality insulation material use to ensures that the equipment can maintain good performances even under frequent use. Specifications: Material: Plastic + Metal Size: approx. Length 22cm/8.66inch Capacity: 2200mAh, 2900mAh Package Includes: 1 Set Handheld coil with Power Adapter Cable note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.