- 2025 Upgraded Bluetooth 5.4 and Ultra-Low Latency: The in ear wireless earbuds are equipped with an advanced Bluetooth 5.4 chip and a high-sensitivity antenna. Compared to Bluetooth 5.3, Bluetooth 5.4 optimizes channel classification and AFH performance, improving interference management. It also reduces power consumption by 30% and enhances signal stability by 35%. The built-in Hall sensor enables the Bluetooth earbuds to automatically pair when the charging case is opened(within 15m)