HKC P778A - Manual (Page 14)

Android keyboard: Android keyboard setting
Sound on Key-press
Auto-capitalization
Show suggestions: Display suggested words while typing
Auto-complete: Spacebar and punctuation automatically insert highlighted word
4.7. Date & time setting
Set date, set time, Select time zone and select date format
4.8 USB Mode Select
Choose USB work pattern: OTG/HOST/SLAVE……..
4.9 About device