1.This is a of software-defined radio receiver RTL-SDR with RTL2832 ADC chip, 0.5 PPM TCXO (customization is optional) and MCX connector, with a bandwidth between 25 MHz and 1760 MHz. Very suitable for use as a radio scanner with free computer software. 2.Suitable for applications. 3.This model uses a ADC RTL solution. It uses the improvement of the tuner, with 0.5 PPM TCXO (optional customization) (no drift, with initial offset accuracy and 1 PPM PPM 0.5 temperature deviation), increased part tolerances, and MCX connectors. A USB 2.0 port is required, and can be used with most USB 3.0 ports (Please note that we cannot that this feature work on all USB 3.0 ports, so just in case, please make sure your PC has a USB 2.0 port) . 4.Fully assembled and ready to use 5.Small size 6.25 MHz to 1760 MHz, operating frequency 7.Copper from 25 MHz to 1760 MHz in the VHF and UHF bands 8.AM, NFM, FM, , USB, LSB and CW reception modes 9.The MCX antenna gold connector is also more and has low insertion loss. size: 8.5x2.5cm Material:ABS colour:Blue Package Contents: 2 x receiver 2 x Antenna 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.