1.+ Digital Audio Broadcasting Receiver Box, if you have Android 5.1 or above Car Stereo/ Autoradio, normally this + box can work with it,then you can enjoy the superior audio quality of + in your car! 2.The included antenna itself is advanced with amplified function, high sensitivity, use the MCX port to connect; 3. Plug and play, USB Port supply power for + Box and the connecting Antenna; 4. Stable receiving and high signal noise ratio, stereo output, class quality. Working Temperature: -20Celsius - +70Celsius Power Supply: 5V, USB Port Frequency Range: 174-240MHz Channel Separation: 55dB Channel Difference: +/-3dB Input Impedance: 50ohm Antenna Input Type: MCX Colour:Black Material:plastic Package Contents: 1x + antenna with USB adapter 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.