Usdr usdx+ Plus V2 8 Band SDR Full Mode HF Ham Radio SSB QRP Transceiver Upgradeusdx+ HF Shortwave Transceiver QRP SSB CW Transceiver 3W 5W All Mode 8 Band Upgraded Version of usdx Note: This product has no power source. It needs to be equipped by the user. Make sure you don't mind before buying! ! ! The power interface is 5. 5mm, the power supply voltage is 12. 6V, 1A 2A can be used. You can buy a power supply according to the above values, thank you. Description: This is a shortwave QRP SSB CW transceiver. The ultra small size