Upgraded BT5.0 processing chip, faster and more stable connection, low latency, strong anti-interference performance Adopt 13mm moving coil speaker unit, the treble is transparent and full, the bass is shockproof, every note is perfectly presented, HiFi surround sound Lossless sound insulation and noise reduction, effectively blocking 80% of various environmental noise, binaural clear call Aluminum alloy charging case shell, magnetic suction cavity design, fashionable and durable Ergonomic semi-in-ear design, the earbud fits ear canal, comfortable and stable