Feature: 1. Romantic and Memorable: The cold spark machine is ideal for create a romantic ambient with amazing visual effects reminiscent of a waterfall, making weddings more memorable. 2. Versatile Application: Crafted from high grade materials, the cold spark firework machine is reliable and suitable for a variety of places such as weddings and other performances. 3. Advanced Firework Effects: This machine uses advanced electronic spark technology to create colorful and stunning firework effects that can catch everyone's attention. 4. Safe and Secure: With a cold spark firework design, this machine avoids the production of real flames, ensuring a safe environment while still providing a visually appealing show. 5. Portable and Convenient: The firework effects device's lightweight plastic design makes it incredibly easy to set up and transport, allowing for a more convenient use every time. Specification: Item Type: Cold Flame Firework Machine Material: Plastic Remote Control Battery: Shipped with built in battery Firework Machine Battery: 2 x AA batteries (not included) Package included 8 x Machines 2 x Remote Control 1 x Case