Can transmit signals and record received signals. Can scan and store signals. Can receive 4GLTE signals. Can be used as a simple spectrum analyzer. Compatible with for , for , for Linux, for , for Android, and for old mobile phone systems. Frequency:1Mhz-6Ghz Bandwidth:20Mhz Accuracy:8bitADC/ Rate:20Mbps Maximum transmit power:10dBm Maximum receive power:-5dBm (Note: Exceeding this value burn the board) 64QAM transmit :1.5% Complex sampling bandwidth:20Mhz with circuit protection MAX2837 chip The product appearance and printed words depending on the batch, but this does not affect use. Colour:As Shown Material:Metal Package Contents: 1 x motherboard 1 x antenna 1 x data cable 1 x accessory bag 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.