Works with for a Pi2/Pi3 or Pi4 (USB connector positions swapped) Uses for the Cmedia CM119B or CM108B USB audio IC Uses for a NiceRF SA818 UHF or VHF embedded radio module 500 to 1000(default) milliwatts RF output power Small, portable with self contained radio and antenna Radio settings changed using for a program running on the Required Hardware: 1. A fully assembled SHARI Pi3U, Pi3V, Pi4U or Pi4V. 2. A 2, Pi 3 or Pi4 . The Pi2 or Pi3 is normally used with for the SHARI Pi3(U) , while the Pi4 is normally used with the SHARI Pi4(U) 3. A case for the . A metal case is preferred but if you want to use a WiFi connection instead of a wired network connection then a plastic case may be required to obtain adequate range. 4. A Mini-SD card - 16GB or larger, or better is recommended. 5. A power supply for the Pi-This should be a power supply intended for the version of the . These supplies typically provide 5.1 to 5.2 to the Pi. Current requirements vary with version. Numerous problems with Nodes have been traced to inadequate power supplies. Material: aluminum alloy colour: silver Package Contents: 1 x Portable Radio Interface 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.