Ultra-Portable 2" Tall Speaker Bluetooth 5. 0 Technology Wirelessly Connects to all Bluetooth Enabled Devices 30Ft. Wireless Range / Over 4 Hours of Music Time on a Single Charge. / Rechargeable - Micro USB Cable Included Easily Connect 2 Bitty Boomers Together and Enjoy a True Wireless Stereo Experience Strap Included to Help Secure to any Backpack or Bag