1. RDA5807 radio module with noise elimination, bass enhancement, high sensitivity, low noise, and strong anti-interference capability 2. Features 15 sound levels with potentiometer adjustment for customizable audio output 3. Digital tube display for easy viewing of radio channels and signal strength 4. Includes power-off memory, automatic search, and station storage function for convenient radio management 5. Equipped with power saving mode for improved energy efficiency 6. Adjustable channel search threshold to capture more radio signals 7. Product name: HU-017B Upgraded RDA5807 Radio Production Kit 8. Power supply: 3 AAA batteries (not included) or USB power supply (choose one) 9. Receive frequency range: 87–108 MHz 10. Maximum operating current: approximately 250mA (at maximum volume) 11. PCB dimensions: 95.5 x 59 mm 12. Total weight: approximately 136g 13. Color: Clear (acrylic material) 14. Material: Acrylic 15. Package includes: 1 x DIY Radio Assembly Kit (with case) 16. Note: The package includes only the items listed above; other items are not included 17. Note: Lighting effects and display differences may cause slight variations in color appearance. Measurement tolerance: +/- 1–3 cm