Button-based devices include older models such as the Amazon Kindle 1, 2, 3, and DX models, plus the Sony Reader Pocket and the original Kobo eReader.
Ngwa nkwụnye bọtịnụ na-agụnye ụdị ndị okenye dị ka Ụdị Omuma nke Amazon, 1, 2, 3 na DX, yana akwụkwọ akpa Sony na akpa Kobo eReader.