Neptor NPSP01-PU Interactive Touch Play Wireless Portable Bluetooth Speaker with Rechargeable Battery with Built-in Mic/Speakerphone/Hands-Free Calling Interactive Touch Play technology with speaker responses based on user touch interaction Tap to pause/play music, pickup/end phone calls Twist to increase/decrease volume levels Stream audio wirelessly Lightweight and portable at 160g for easy placement anywhere Up to 3.5 hours of playtime