Come and see our amazing products. Our wireless earbuds adopt the most advanced Bluetooth 5.0 technology.the propagation distance is extended by 4 times (33ft-50ft), the power consumption is reduced by 50, faster 2s Auto-paring and Stronger compatibility.CVC8.0 noise cancelling technology which can filters out external noise & enhances the sound of your voice for clear hands-free calls, allow you hear in louder environments.IPX5 Waterproof,Built-in microphones support phone calls and voice assistant with either or both earbuds. Pls confirm further with us if any query about packing info, inventory status and time schedule.