Green Lion True Wireless Earbuds 3 comes with Bluetooth connectivity. This product can offer you 9D stereo immersion sound quality blasting. This earbud has been crafted with the latest sound technology to provide you with a high-clarity sound that you didn’t experience before. Green lion true earbuds 3 can work for 6 hours. In another word if you put this case in the charge only for five minutes, you can use it almost for one hour, this is a fact of its functionality. You don’t need to connect it over and over to the same previous device that you already paired with your phone. After the first successful connection open the charging bin and the phone will automatically connect at the same time you can check the power of the headset.