The msi2500 msi001 solution simplifies the RSP1 circuit, and the interface is a USB Type-C interface (Android phone interface). The 5 antenna interfaces correspond to different frequency bands. The effective frequency range is 10KHz to 1GHz, the resolution is 12bit, and the whole segment is 10M real-time visual bandwidth (you can listen to the 10M wide signal range in real time, such as 430-440MHz) FM frequency modulation, AM amplitude modulation, SSB single sideband, CW constant amplitude telegraphy Compatible with the four major platforms of Windows, Linux, OS, and Android, and supports mainstream software such as SDRuno, SDR Sharp, HDSDR, SDR consol, GNURadio, and SDR Touch. (Android devices need to support OTG) Type: Radio Receiver Frequency range: 10KHz-1GHz resolution: 12bit Colour:silver Material:Metal Package Contents: 1 x Radio Receiver 1 x 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.