Dexim DEA059-L Soundex Portable Speaker with Bluetooth, Rechargeable Li-Ion Battery and Built-In Mic (Blue) The Soundex portable stereo speaker offers powerful sound supported by music streaming via Bluetooth A built-in, rechargeable Lithium-Ion battery lets you enjoy your music for up to 3 hours at a time Works with any compatible iOS or Bluetooth-enabled device, and includes an aux-in port to connect to devices without Bluetooth Integrated microphone for hands-free phone calls Watch your music as the LED color light follows your song's melody