MINI TEF6686 radio with ESP32 main control Using open-source programs Acrylic UV printing shell Audio: Supports 3.5mm headphone jack, 5W AB amplifier, 10S speaker side sound output No headphone amplifier, it is not recommended to use high impedance headphones 2.0-inch IPS ST7789 full view screen Size: 4.6x7.6CM Reception range: Long wave 144kHz 288kHz Medium wave 522kHz 1710kHz Shortwave 2300kHz 27000kHz FM radio 65MHz 108MHz Power supply: TYPE-C fast charging input, built-in charging power management, battery capacity 800mAh Note:due to different production batches, the printed words on the products are different. Colour:Grey Material:Acrylic Package Contents: 1 * radio 1 * telescopic antenna 1 * charging 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.