August 27, 2021

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Bluetooth 5.1 Technology: Rulefiss earbud adopt the advanced Bluetooth 5. 1 technology, which highly improve the transmission speed and offer you a low-latency listening experience. Making music playback and conversations smoother and clearer than ever. Enjoy continuous music in one or both wireless earbud, super-fast connection, super easy pairing, and a stable connection.
LED Power Display: Features with smart LED digital display, you can easily know the battery consumption on both bluetooth earphones and the charging case so you can master the best time to charge it. For the right or the left true wireless earbud, while the earbud is chariging, the led bars of the earbud will flash, once the earbud are fully charged, the led bars of the earbud have no light flashing.