Specification: --- Great for DIY projects to replace an existing 3.5mm jack. --- Wiring connection: PIN 1- Ground; PIN2- microphone; PIN3- Left Audio; PIN4- Right Audio; (Note: number 1, 2, 3, 4 is marked on the solder pins and the plastic socket ). --- The Pin is finished with holes which could provide ample room for tinned wires to loop through to make solid connection. 1. Product Model: PJ-31640-4P 2. Voltage Rating: 30V AC,DC 3. Current Rating: 0.5-3A 4. Rated load: DC 30V 0.5A 5. Contact Resistance: ≤30mΩ 6. Insulation Resistance: ≥100mΩ (500VDC) 7. Withstand Voltage: 500VAC 8. Insertion and Extraction force: 3N~30N 9. Life Test: 10000cycles 10. Operation Temperature Range: -20°C ~70°C 11. Preservative Temperature Range:-40°C ~85°C Product List: 10 x 3.5mm Stereo Female Headphone Audio Video Jack Socket Plugs