1. using ESP32-S3 main control, 1.9inch IPS HD color screen 2. Using SI4732 chip, support broadcasting full band, LSB/USB/AM/FM mode. 3. Equipped with 70cm portable tie rod antenna can be used for reception. 4. Built-in 800 mAh battery, battery life of about 10 hours or more. 5. Shell petg 3D printing. Master:ESP-32-S3 Receiving band:HF/SW/MW/VHF Screen:1.9inch,170 x 320 Charging interface: TYPE-C (does not support fast charging) Audio Interface:3.5mm Battery Capacity:800ma Body size:7.3 x 3.2 x 1.2cm Color: As Shown Material: ABS Package Contents: 1 * SI4732 Radio 1 * Antenna 1 * Stand 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.