1. Material: copper + ABS 2. Technology: gold-plated 3. Application field: communication 4. Adopting insulating flame retardant plastic, so that the terminal is not easy to oxidize in the process of reuse 5. All copper material, strong conductivity 6. Plugged in immediately connected to use, tight connection 7. Size: 31 x 10mm 8. Weight: about 5g