Audio-Technica ATH-CKS50TW Noise-Canceling True Wireless In-Ear Headphones (Black) - Manual (Page 12)

Part names and functions
11
Accessories
2 1
1 USB charging cable (30 cm (12"), USB Type-A / USB Type-C ™ )
2 Eartips (XS, S, M, L)
At the time of purchase, the M-size eartips are attached to the product.
Removing the insulation seals
Remove the insulation seals before use.
1
1 Insulation seal