Case for two Heltec V3 (V4) modules and two 18650 batteries with a KBB70-2P2W switch. Use antennas with a bottom diameter of no more than 12mm. The case parts are fastened with four DIN7981 2.2x6.5 self-tapping screws. This case can be used for a dual-band node in a Meshtastic network or as a bridge repeater or companion repeater in a Meshcore network. The model is printed simply, without supports. For a better appearance, use different filament colors. I recommend printing the buttons with transparent plastic for light indication of module operation.