Razer Hammerhead tws Not pairing

My hammerhead earbuds doesn't have any instructional voice like "Pairing", "Power On", or "Power Off". I tried to reset the earbuds by tapping 3 times  and by putting them in the case for at least 5 seconds. I tried pairing by pressing and holding on both earbuds and also by keeping the case open next to my device. I tried to put them in a pairing mode but nothing works. The case is fully charged as the light is green and I kept it on charger all night long.