Benesse Shinken Zemi Challenge Touch Microphone Headset I don't think I ever used the headphones, but please understand that they have been stored at home. I confirmed that I could hear sound when plugged into a smartphone. I also have a Benesse tablet, electronic dictionary, Pocket English Master, English教材 Be-Go, and various other items for sale. Please take a look. I might be able to offer a discount for combined purchases. #Halloween on Mercari