| Housing | Zinc alloy diecast |
| Insulation | PC |
| Contacts | Brass |
| Contacts plating | Nickel or Gold |
| Bushing | PVC |
| Order Code | Description |
| RJ2PP-BK-NN / RJ2PP-RD-NN | 6.3mm mono plug, Nickel plated housing / Nickel plated contacts |
| RJ2PP-BK-BG / RJ2PP-RD-BG | 6.3mm mono plug, Black housing / Gold plated contacts |