1. Main control, 1.9-inch IPS high-definition color screen 2. SI4732 is used as chip, supporting full-band broadcasting, LSB USB AM FM mode. 3. Built-in 800mAh battery, battery life is about 10 hours or more. 4. Equipped with a portable loop antenna, which can be used to receive 0.5-108Mhz. 5. The shell is 3D printed. Tuner technology: Part name:SI4732 radio Master control:for ESP-32-S3 Receiving band:HF SW for MW VHF Screen:1.9 inches, 170x320 Charging interface: TYPE-C (fast charging cannot be used) Audio interface: 3.5mm three-band stereo Battery capacity: 800ma Colour:Blue Material:Plastic Package Contents: 1 * SI4732 Radio 1 * loop Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.