This is a car key shell(remote keyless entry / RKE transmitter).
It’s a black plastic wireless remote used to lock and unlock a vehicle’s doors (and often control other functions like the trunk or panic alarm).
Key features
Top silver button with a closed padlock icon → Lock
Bottom silver button with an open padlock icon → Unlock
Grid of small holes below the buttons → speaker for the panic/alarm chirp
This style is commonly associated with Honda/Acura vehicles