Knob Design & 2.4 inch LCD Display Knob Design, For adjusting the volume, convenient and practical 2.4 inch LED Display, Frequency, time is clearly visible, Automatical backlight, save energy Easy to use or outdoor, DC 5V power input mode for home use, 4 x 1.5V AA battery mode for outdoor use Support FM & AM FM: 87.5-108MHz AM: 522-1620KHz Support Automatic/Manual scanning of radio stations Support 20 favorite radio stations Clear Sound & Bass Performance, Built-in 50mm big speaker, Built-in Bass Passive Radiator More Functions Clock & Alarm clock function Support 3.5mm wired earphone for private listening With 2 anti-slip pads for standing on tables Color: Black Material: plastic Package Contents: 1 * Bluetooth Radio 1 * 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.