1. Adopt ESP32-S3 master control + SI4732 chip, support full-band broadcast, LSB USB AM FM mode, support AGC/ATT function 2. Adopt 1.9-inch IPS high-definition color screen, support screen backlight brightness adjustment, support battery power display 3. Built-in 800 mAh battery, battery life is about 10 hours or more 5. Built-in 1W power cavity speaker, loud and pleasant sound quality Support firmware upgrade, currently built-in V1.01 version firmware (the manual also has a tutorial) Easy to operate: all actions can be performed by a single /rotation of the rotary encoder button Built-in headphone amplifier circuit, the sound is louder and more pleasant Master control: ESP-32-S3 Working mode: FM/AM/LSB/USB (note, does not support aviation band) Receiving band: HF/SW/MW/VHF Frequency range: LW, MW, SW (150kHz - 30MHz), VHF (64-108Mhz) Screen: 1.9inch, 170 * 320 resolution Brightness: 32-255 adjustable Charging interface: TYPE-C (cannot be with fast charging) Audio interface: 3.5mm three-stage stereo Antenna interface: SMA-KE (inner hole) Battery capacity: 800mAh Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: Black Material: ABS Package Contents: 1 x MINI SI4732 radio 1 x loop antenna 1 x USB cable 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.