Ordered as a substitute for use in a remote control. The provider Online store Leipzig provides the batteries, as shown in the official photo in the article description, in a 5er Blister. The shipping was very quick in a padded envelope. The item is marked by a MHD 12/2019 and made in Indonesia. On the back of the packaging is marked "for calculator".
It remains to be seen how long the batteries operate in a remote control.