This professional 4-channel wireless remote ignition system provides safe and reliable firing for fireworks displays. The receiver operates on 4 AA batteries, while the transmitter uses one 12V 23A battery, offering a robust control range of up to 150 meters (492 feet). Designed for reliability, the economical receivers work independently; if one fails, the others continue to function seamlessly. The system is easily expandable by adding more receivers for larger shows. For convenience, receivers come pre-programmed but are fully reprogrammable. To reprogram, simply insert a paperclip into the small hole on the receiver until it flashes, then press the corresponding key on the remote to pair. Handle the product with care, avoiding drops or impacts. For safety and to prevent damage, position the receiver as far from the firing area as possible. Always remove batteries before long-term storage and keep the unit in a clean, dry place. Operating on a 433MHz frequency, this device complies with FCC Part 15 rules. Please note that its operation is subject to two conditions: (1) it must not cause harmful interference, and (2) it must accept any interference received. Color and material are as shown in the product images. The package includes: 1 x Receiver and 1 x Transmitter. Please note that only the listed items are included; other products are sold separately.