Enjoy music with no restrictions. The True Earbuds 3 offers you 9D stereo immersion sound quality blasting and uses the master/slave mode, a mode that allows your main device to control your earbuds using Bluetooth 5.2. This earphone was created using the most recent audio technology to give you a high-clarity sound that you haven’t heard before. The earbuds come with a free silicone case that is used as a charging base.The Green Lion True Earbuds 3 have a 6-hour battery life, if you charge this case for just five minutes, you can use it for over an hour. As well, using the charging case after the initial connection is successful, your phone will connect automatically. You will be able to use touch control with these earphones. With this option, you can skip to the next or previous song, pause the music, answer or end calls, and change the voice volume. This earphone’s level of IPX5 water resistance is another fantastic feature. Specification Bluetooth Version: Bluetooth Version 5.2 Charging Current (Both Ears): 30 mA Charging Time: 90 minutes Input Voltage: DC 5V/IA Standard Charging Current: 250 mA Frequency Response: 2.4GHz-2.48GHz SKU: GNTWIRBUDBK GNTWIRBUD EAN: 6935100156903 6935100156170 Features Wireless Charging Compatible Pop-Ups Auto Pairing Smart Touch Control Master-Slave Switch IPX5 Waterproof