Features: 1. Power Source: 6V requires only 4 AA batteries per receiver. 2. Range: 150 meters. Each receiver includes an antenna. 3. Fully programmable pair any or all receivers to any button on any system remote. To program the receiver, insert a small stick into the hole on the receiver box. The indicator light will flash; then press the corresponding key on the remote. The receiver will then operate with the remote. 4. Expandable add additional receivers (sold separately) to increase the number of cues. 5. Interchangeable & Economical: If a receiver develops an issue after extended use, it can be replaced individually. Only the receiver needs to be purchased no need to buy a new remote. Specifications: Power Source: 6V requires only 4 AA batteries per receiver. Range: 150 meters. Each receiver includes an antenna. Fully programmable pair any or all receivers to any button on any system remote. To program the receiver, insert a small stick into the hole on the receiver box. The indicator light will flash; then press the corresponding key on the remote. The receiver will then operate with the remote. Expandable add additional receivers (sold separately) to increase the number of cues. Interchangeable & Economical: If a receiver develops an issue after extended use, it can be replaced individually. Only the receiver needs to be purchased no need to buy a new remote. Material: Plastic Weight: 265g / 9.3oz Frequency: 433MHz Transmitter Power Source: 12V 23A battery (NOT included) Receiver Power Source: 4 x AA batteries (NOT included) Keys Quantity: 12 pcs Range: 150m / 5905.5 inches Package List: 1 x Remote Controller 1 x Receiver 1 x Set of Connecting Lines Note: 1. Handle your product with care; avoid shaking and dropping. 2. Keep the receiver as far away from fireworks as possible to prevent damage. 3. Remove batteries before storage to prevent corrosion. 4. Do not place the product in damp, acidic, alkaline, or polluted environments. 5. Batteries are NOT included with any components of this system.