This item was purchased in 2023. I believe I have all the original bags and boxes from when it was shipped, but please understand that I may have forgotten something (＞＜) I remember the strap tore a few centimeters, but I was able to use it without extending it. I will also include used batteries. I have confirmed that it works. I think I used it for about a month each in 2023 and 2025. - Model Name: Baby Monitor - Included Accessories: Instruction Manual - Features: Monitor to watch over the safety of your baby For those considering purchasing, I'll share my personal experience: ・It doesn't detect movement when the baby starts to roll over. ・It doesn't detect movement when the baby is rolling around in the bed. ・Sometimes it doesn't detect movement with a mattress about 5cm thick. I probably shouldn't say this as the seller... but there were a lot of malfunctions. It sometimes woke me up with false alarms, which disrupted my sleep, so I only used it for about a month. I think it would be safer to purchase it with a type that attaches to diapers, or to accept that you'll only use it for about a month. It might be usable for a few months for babies who don't move around much, but it depends on the baby... Just for your reference ☺︎