After using it for a long period of time, due to the oxidation of the magnet connector, the earbuds might not be charged or even turned on.

Take both earbuds out of the charging case and both earbuds will power on and start pairing automatically. In my testing, the connection was stable, and latency was minimal both when watching videos and gaming. Call quality was clear with good noise reduction. The 10mm drivers deliver powerful bass and clear mids and highs. The sound quality punches above its price range. The earbuds will only be charged when you place them in the charging slots correctly. (You can charge the charging case and the earbuds at the same time, or you can charge the charging case first and then the earbuds.) The indicator light will show blue while charging. With 10mm dynamic drivers, these Ltinist BX27 Wireless Earbuds deliver powerful bass and crisp vocals for an immersive listening experience. The Bluetooth 5.3 chip ensures stable connectivity and efficient power consumption. The earbuds are IPX7 waterproof rating so you can use them while in the rain. Don’t worry about these earbuds being unfunctional, they can withstand spilled liquid, and sweat without damage.Do not expose the earbuds to high or low temperatures, and do not use the earbuds during a thunderstorm.

The Ltinist BX27 wireless earbuds deliver sounds good and offer an enjoyable and exciting experience listening to music. The bass is powerful, stunningly clear vocals and the overall sound quality is great when listening to music. The earhook design keeps the earbuds in place, not moving. These ear hooks are flexible let they enough to perfect fit a wide variety of ear shapes. They also accommodate the arms of glasses. The Ltinist BX27 wireless earbuds also fit under the helmet well and don’t feel annoyed, as well as no compression being felt under the helmet. Enable the Bluetooth pairing mode on your phone device, search and select "BX27" to connect. (You should hear a voice prompt "connected" when wearing earbuds).A : These earbuds are sweatproof and slightly waterproof. For electronic devices, we do not recommend that you submerge the earbuds in water. However, some users have reported issues with the build quality, such as the protective layer falling off after a few months of use. Additionally, a few customers have experienced difficulties with customer support and delays in response. Pros and Cons