Features: Equipped with 2.4-inch color touch-screen, it can let you read data more smoothly and provide you with better user experience. Built-in large-capacity lithium-battery, no need to worry about sudden power failure affecting use. Support Type-C port upgraded program, 3.5mm stereo-audio output, and 3.5mm audio-fm antenna interfaces, with charge current up to 1.5A. With display screen, used to display radio information. External antenna interface can connect various external antennas. The knob can be rotated to adjust the frequency: it can be pressed to enter the menus. Specifications: Housing Material: aluminum-alloy Size: about 11x10.3x4.7cm/4.33x4.06x1.85inch Built-in Lithium-battery: 3.7V/2000mA Functions: Radio frequency spectrum-scanning function Backlight-brightness adjustment Backlight-off Battery-voltage display Battery-percentage display High-precision rotations long-life encoder-knob FM RDS information display Mobile APP network-WIFI configuration With 2.4GHz external antenna interface, strong signal WIFI network-time service display Time-area customization Support Russian firmware upgraded (Russian firmware needs to be purchased at fee, please purchase the key-authorization yourself) Frequency: FM: 64 functions 108MHz/RDS functions LW: 153khz 500khz MW: 520khz 1710khz SW: 1730khz 30000khz SSB: 1730khz 30000khz Antenna-interface: BNC-port Package Includes: 1x ATS-25X2 FM Network-Receiver with Antenna 1x Charge Cable 1x Storage Bag 1x Cleaning Cloth note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different monitors resolution.