Ultimate Ears Megaboom 3 Portable Bluetooth Speaker (Ultraviolet Purple)

Maximum Sound Level: 90dBC
Frequency Range: 60Hz - 20kHz

Rechargeable Lithium-Ion Battery
up to 20 hours of battery life** between Micro USB charges.

Pair up to 8 Bluetooth enabled source devices.
Connect up to two source devices at the same time.
Mobile range of play is up to 45 m (150 ft).

For Audio Playback: Smartphones, tablets and other devices that support Bluetooth and Bluetooth Smart wireless audio profile [Advanced Audio Distribution Profile (A2DP)]