Item Type: Full Band Radio Shell Material: Aluminum Alloy Battery: 3.7V Lithium Battery 2000mah x 1 (Shipping With Built In Battery) Charging: Type C Shell Size (Excluding Protruding Parts): Approx. 11.1 x 10.2 x 4.7cm / 4.4 x 4.0 x 1.9in Package List 1 x FM Radio Receiver 2 x Antenna 1 x USB Cable 1 Set x Cushion Pads(4Pcs In Total) 1[Backlight Brightness Adjustment] This FM radio receiver has the RF spectrum scanning function, backlight brightness adjustment, backlight off. 2[2.4in Color Touch Screen] Full band radio DSP receiver equipped with 2.4 inch color touch screen. With 2.4G external antenna interface, strong signal, WIFI net timing display, time zone customization. 3[Encoder Knob and WIFI Configuration] Radio DSP receiver adopts high accuracy rotating long life encoder knob, FM RDS information display and support cell phone APP net WIFI configuration. 4[Audio Output and Interface] This radio supports 3.5mm stereo audio output, 3.5mm audio FM antenna interface, maximum charging current 1.5A. 5[Type C Charging] This FM radio receiver has battery voltage display, battery percentage display, Type C interface support.