Because different generation and model numbers of AirPods are incompatible. Left single side AirPod Pro 2nd gen Year 2022 without the charging case.
Apple AirPods Pro 2nd Gen Box Only with Manual and Ear Pillows Tips - NO AIRPODS
Apple AirPods Pro 2nd Generation (USB‑C) With Apple Care+
Apple AirPods Pro 2nd Generation (Apple Account)
Apple AirPods Pro 2nd Gen Wireless Charging (Mid - 2022)
Apple AirPods Pro 2nd Gen Wireless Charging - White Brand New (Mid - 2022)
Genuine Apple AirPods Pro 2nd Generation A2968 Charging Case - USB C - MARKS !
