1. Using ESP32-S3 main control, 1.9inch IPS high-definition color screen 2. Use SI4732 chip, support full-band broadcast, LSB USB AM FM mode.3. Built-in 800 mAh battery, battery life is about 10 hours or more.4. Equipped with a portable loop antenna, can be used to receive 9.9K--108Mhz.5. Shell PETG 3D printing.The small ring antenna supports a broad frequency range from 9.9KHz to 181MHz. It allows for directional reception, and you can rotate antenna to find optimal receiving angle, ensuring clear and stable signals.Master control: ESP-32-S3Receiving frequency band: HF SW MW VHFScreen: 1.9inchCharging interface: TYPE-C (cannot use fast charging)Audio interface: 3.5mm three-band stereo Battery capacity: 800mANote:Installation guide not included,Please check as much as possible to make sure item is what you need.Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect UseColour:Photo ColorMaterial:plasticPackage Contents:1 x MINI SI4732 radio1 x loop antennaOnly above package content, other products are not included.Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.