1. Improved frequency range and adjusted frequency interval for easier channel switching. 2. Added squelch function to mute audio when no signal is present. 3. Enhanced sensitivity improves overall receiver performance. 4. Supports connection to external equipment such as power amplifiers. 5. Designed for receiving air-to-ground and air-to-air radio communications. Material: Plastic Item Type: Receiver Band Range: 118–136 MHz Mode: AM Power Supply: 2 x AAA batteries (not included) Usage: Insert a compatible earphone into the headphone jack, turn on the device using the volume/switch knob, extend the earphone cable, and adjust the frequency dial to select the desired aviation band. Notes: 1. Avoid placing near potential sources of interference, such as generators, switch-mode power supplies, computers, or transmitters. 2. Adjust volume to a comfortable level to protect hearing. 3. Fully extend the earphone cable during use to minimize handling noise and ensure optimal reception. 4. Aviation band signals travel line-of-sight; best performance is achieved in open outdoor areas or elevated locations. 5. Always comply with local aviation regulations when operating. 6. Aviation band signals are low-power; allow time when searching for active frequencies. 7. Slight variations in appearance or printed markings may occur between production batches; these do not affect functionality. Package Contents: 1 x Airband Radio Receiver Note: Color representation may vary slightly due to lighting conditions and display settings. Dimensional tolerance: ±1–3 cm.