I'm looking for a small wired keyboard that could be used with a mobile phone (capable of USB OTG).
USB connection, preferably microUSB connector (to remove the need for reductions)
foldable (e.g. like HB066)
preferably without wireless capabilities
may include touchpad
may need batteries
The question is similar to Wired USB connected foldable keyboard with mouse?, apart from the requirement to include touch area.