Every single member from our higher effectiveness product sales staff values customers' requires and organization communication for Ecg Clamp Electrode, Mindray Ecg Trunk Cable , Origianl Spo2 Oximeter , Finger Pulse Monitor ,Mindray Spo2 Sensor 512f . Please don't hesitate to contact us if you are interested in our products. We firmly believe our products will make you satisfied. The product will supply to all over the world, such as Europe, America, Australia,Russia , Manchester ,Macedonia , Denver .We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.