Adopt MS, i1001+MS, i2500 solution, simplify RSP1 circuit and USB interface. RSPI software-defined radio receiver, basic optimization and design of complete schematic diagram, reasonable use of materials in design, and emphasis on performance . The effective frequency range is from 10KHz to 2GHz, the basic parameters of the receiver are 10KHZ to 2GHZ, ADC: 12bit ADC resolution, real-time broadband, 10MHZ, (simultaneously processing 10MHZ signals). Widely used, suitable for AM/FM/nFM, (narrowband FM for pattern walkie-talkies) WC line telegraph/digital walkie-talkies, # letters, broadcast/SSTVi frequency/and other radio applications Compatible with four platforms: Works with for , Linux, MACOS and Android. Support software:SDRUnO. HDSDR.SDR, COnSOI, GNUradio. , TOUCH Frequency range:10kHz-1GHz Outlet:USB 2.0 Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:Silver Material:aluminum Package Contents: 1 * Receiver 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.