[Fine Sound & Clear call] TOZO E1 equipped with 6mm driver units and microphone, deliver an immersive audio experience. Whether you're listening to music or making calls, you can enjoy crystal-clear sound and deep bass to a whole new level. | [Small and Comfortable to Wear] Weighing only 3.9g per single bud, our Wireless Earbuds are designed for ultimate comfort. The ergonomic design ensures a secure fit, allowing you to wear them all day without any discomfort. | [Extended Battery Life & Easy Charging] Each earbud has a 40mAh capacity for 8.5 hours of non-stop play. swap them out in turn for all-day use and you’ll get a massive 60 hours total playtime, that’s 900 songs! The USB-A to USB-C charging works with most phone chargers, and the three-color battery level indicator lets you easily monitor remaining power, hassle-free on the go. | [EQs Options & Seamless Sharing] Tailor the sound with the TOZO app further, which allows you to adjust bass levels, music style and more to your liking, and experience the joy of sharing your customized EQ with global audiophiles in exclusive ‘EQ zone’. | [Fast Pairing] Enjoy fast pairing and reliable transmission with Bluetooth 5.3 technology, allowing you to stay connected and enjoy your favorite tunes without interruptions.