Purchased on Amazon, brand new and unopened. The item is in hand and ready to ship immediately! Sennheiser Headphones Sennheiser HD 450BT wireless headphones with active noise cancellation, Bluetooth 5.0, and USB-C charging. - Model Name: HD 450BT - Brand: Sennheiser - Bluetooth Version: 5.0 - Active Noise Cancellation: Yes - Charging Method: USB-C - Included Cable: Audio cable - Manufactured: June 2024 - Importer: Sorova Consumer Hearing ● Other Payment via convenience store is only accepted if payment can be made within 24 hours. Shipping will occur within 24 hours of payment confirmation. I do not have any pets and I am a non-smoker, so please be assured. My items for sale are guaranteed authentic, purchased from authorized retailers. Therefore, returns are not accepted after purchase to prevent product substitution, so please understand that all sales are final (NCNR). I am not responsible for initial defects in new products. There may be scratches or dents on the box during shipping. Please refrain from purchasing if you are overly concerned about this. I am not responsible for shipping-related issues. Price is not negotiable.