Your tablet should allow for Bluetooth.
To turn on the Bluetooth, go into "Settings" and then tap "Wireless & networks". In there select "Bluetooth". Changing the Bluetooth setting to "On" will make your tablet visible to any nearby devices that are actively searching for Bluetooth devices.
Another way to turn Bluetooth on would be to "Swipe down" form the top of the tablet screen and use the "Quick Settings".
Here is the info I got on that tablet... which does say Bluetooth...
TABLET: RCA MODEL RC6773W22, TABLET, 8 GB, ANDROID 4.4 X KITKAT
Specific details
Electronic Condition Rating VERY GOOD: A WELL-CARED-FOR ITEM THAT HAS SEEN LIMITED USE BUT REMAINS IN GREAT CONDITION. THE ITEM IS COMPLETE AND UNDAMAGED. THE ITEM WORKS...