Bitty Boomers Collectable With A Purpose Hulk - Bitty Boomers are ultra-portable, beyond adorable, wireless Bluetooth speakers. Don't be fooled though, what they lack in size, they make up for with clear, powerful, room fillingsound.. Sync 2 speakers together for true stereo sound. Connect to any Bluetooth enabled device. 4 hours + of music play on a single charge. Backpack strap included. Can be used as a selfie remote. 2" Tall. Bluetooth 5.0 technology and Officially licensed product.