Easy-to-use portable speaker for your viewing and listening entertainment. Hands-free upright design offers the perfect angle for viewing videos from your Smartphones and other mobile devices. No wires or Bluetooth® pairing required, this speaker is compatible with most mobile devices that have an external speaker s Induction technology senses the sound vibration from your phone's speaker and amplifies it producing powerful, clear sound s Powerful 850 mAh Li-ion rechargeable battery allows up to