Compact Size, Comfortable to wear and does not press against the ears PU composite diaphragm acoustic technology, high sound fidelity and more balanced frequency Intelligent high-definition digital display can display the power of the earphones and charging box in real time Using Bluetooth 5.3 chip, low power consumption, faster and more stable connection DNS call enhancement, accurate voice pickup, elimination of environmental noise, clear sound quality Low Latency Technology, audio and video synchronization, 65ms low latency Widely compatible with Android, iOS and Windows Systems, easy to use Bluetooth: V5.3 Battery Capacity: 35mAh, Charging Box: 500mAh Playing Time: 7h (70% volume) Charging Time: About 1.5h Earbud standby time (connected): About 42h Technology: Touch Control, HiFi Super Bass Quality, High Fidelity Sound Water Resistant: IP54