[07/16/2020] Etymotic Research ER2XR 高傳真耳機， Etymotic Research ER2XR Extended Response High Performance In-Ear Earphones (Detachable Dynamic Drivers, Noise Isolating, High Accuracy, Robust Low Frequencies) ，全新，特價只要$101.90 USD。Prime境內免運費。哪裡買：amazon。