NooElec NESDR Nano-P, Black: Small USB RTL-SDR & ADS-B Receiver Set w/RTL2832U & R820T Tuner, PAL Input. Low-Cost Software Defined Radio Compatible with Many SDR Software Packages. ESD-Safe! NooElec NESDR Nano-P R820T-based SDR Tiny software defined radio, perfect for portable SDR applications RTL2832U & R820T for maximum compatibility with RTL-SDR software like Matlab Frequency capability of approximately 25MHz-1750MHz+ Full warranty and support services