The Mibro S1 True Wireless Earbuds include a single-handed sliding cover and minimal delay. Sliding cover charging bays make it simple to open with one hand. The Bluetooth 5.3 continuous and stable chip enables faster transmission and increased stability. On the Mibro S1, call noise canceling is an option. Its four high-performance microphones for each ear, increase call noise cancellation and let you hear others well in all busy environments, such as on the bus or in the metro. Thanks to the 6u ultra-thin diaphragm, skilled EQ tuning, and beautiful stereo sound created by the built-in 13mm speaker driving unit, you will have a high-quality listening experience. Comfortable clothing and innovative design A single earbud barely weighs 3.7g. It is appropriate for long-term usage because of the half-in-ear design. The battery life of these earbuds is 35 hours. Excellent battery life: after completely charged, the earbud may be used for five hours at 60% volume. For a combined battery life of 35 hours, the high-capacity charging dock can deliver both earbuds with six times their normal 30-hour battery life. In regular use, IPX5 Waterproof can successfully withstand water (sweat, face water, and other scenarios). The Mibro S1 True Wireless Earbuds come with a 03-Month warranty.