Since this will be sent via anonymous delivery using Yamato Transport (Takkyubin), please refrain from price negotiations. I used this once at a concert, but I don't think I'll be using it again, so I'm putting it up for sale. The box is slightly torn when opened, and there are stains from stickers. There are no other stains or damage. ◯ Recommended Points ✅【Reliable Soundproofing Performance】NRR 26dB to protect your child's ears from loud noises such as fireworks displays and sports events. ✅【Comfortable Fit】Lightweight and adjustable headband for comfortable wear even for long periods. ✅【Easy to Carry】Foldable & individually packaged, convenient for travel and outings. ✅【Reliable Quality】Complies with ANSI S3.19 standards, so you can use it with confidence. ✅【Versatile】Great for various situations such as shopping malls, airports, festivals, and concerts!