Contour Design Surfacesound Bluetooth Speaker Includes DC car charger, USB to micro USB cable, visor clip, earphone, and user guide Flat Speaker Technology - DSP noise reduction and echo cancellation speaker On the Go or At the Office - Hook it on a car visor or stand it up in the office Bluetooth v1.2, compatible with all Bluetooth-enabled devices Speaker Power - Up to 104dB / Up to 2-Watt