BTW86-HEI

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Bluetooth 5.3 chip: Wireless Earbuds by using Bluetooth 5.3 chip for binaural synchronous transmission, connection speed increased by 50%, more stable connection, clearer calls.
HIFI sound quality: The Bluetooth Earbuds use a 13.4 mm composite diaphragm with large dynamic coil to form a spatial 3D panoramic sound effect, and wireless earbuds to improve sound quality by 30%.