The second photo is a purchase history from Rakuten Ichiba. It's the SANWA SUPPLY fully wireless headset, model 400-BTTWS4BK. It supports Bluetooth 5.0, has a communication range of 10m, and a continuous playback time of approximately 5 hours. It comes with a transmitter and can be used with various devices. [Brand] SANWA SUPPLY [Model Number] 400-BTTWS4BK [Connection Method] Bluetooth 5.0 [Communication Range] 10m [Continuous Playback Time] Approximately 5 hours Although it is unused, it has been stored at home, so please purchase only if you understand. Thank you. I purchased this for my mother, but she won't try it, so I'm putting it up for sale. Thank you.