Xiaomi Haylou X1 Plus Wireless Earphones 12mm Dynamic Driver for Immersive Sound. Enjoy deep bass, expressive mids, and clear highs with the 12mm large dynamic driver tuned by Haylou Acoustic Lab. The latest Bluetooth 5.4 for a stable and smooth connection. Bluetooth 5.4 technology provides better connection and transmission performance for music, movies, and games. Super light and super comfortable, weighing only about 3.8g per earphone, these earphones are designed for long-term wear, giving you a comfortable listening experience all day long. Customized Headphone Personalization The Haylou Sound app allows you to customize your earphones to your liking. Personalize low latency mode, one-click reset, equalizer, and other features. Ultra-low latency - smooth gaming experience Games reach a new level with Filwans fast connection technology. 0.065s latency brings a new level of precision to the game.