I've been using these for about two years. The earphones are only for the right ear, and they come with a case. I've wiped them down with alcohol, but they are used items. Please be aware of this. The left ear cushion is also available, so I will give that to you as well. You can throw it away if you want. Operation has been confirmed. I recommend charging them before use. The charger is also available. The mark on the surface of the case is worn off. The back is still clean. Will be packaged with bubble wrap. Instant purchase is okay, and price negotiations are welcome. Please feel free to ask if you have any requests, and I will do my best to accommodate them.