Bluetooth Connection Built In Microphone IPX5 Splash Proof Up to 35 Hours Playtime Support Intelligent Voice Assistant Powerful Bass Specifications : Active Noise Cancelling Produce lowfrequency noise and creates immerse wave before it reaches the ear Powerful Bass High Clarity Audio Bluetooth 5.0 Super Comfortable Silicon Gel Play Time up to 32 Hours 6.5 Hours playback for Earbuds + 26 Hours for Charging Case Battery Case Capacity: 330 mAh Faster and easier connection Stabel signal Low power consumption intelligntly Compatible for Android / IOS / Window Operating System Tap 3 time on the earbuds to activate intelligent voice assistant on your smartphone.