This portable speaker packs 15” of sound into a fun, mobile design you can take anywhere. When you want music on demand, you can connect via Bluetooth, Aux In, or you can connect to your TV for a cinematic experience. This speaker pulls double duty as your assistant for conference calls at the office. Bluetooth wireless allows straightforward wireless pairing of Bluetooth enabled devices; Wireless range of 33 feet. Built-in microphone, Handsfree speakerphone Party Plus - pair multiple speakers together Controls: volume up/next, volume down/previous, play/pause/pairing/answer phone/power, source Cloth speaker grill Aux in (3.5mm audio input) DC battery power: built-in rechargeable lithium-ion battery; Battery life: ~10 hours at 50% volume Micro-USB port for battery recharge; Charge time: 3-4 hours Includes: Micro-USB to USB cable  Number of Batteries: 1 Included: 1 3.5mm Audio Cable(s) Features: Rechargeable, Built-In Microphone, Built-In Speakers, Volume Control, Bluetooth Compatible Battery Type: Lithium Ion Inputs/Outputs: 1 Usb Port(s) Manufacturer Warranty: 90 Day Parts Limited Power Source: Battery (included) Rms Power: 9 Watts Tuner: Am Watts Per Channel Rms: 4.5 Watts Measurements: 16 Length/Inches, 3 Width/Inches, 4.5 Height/Inches Minimum Frequency Response: 100 Hertz Maximum Frequency Response: 20 Kilohertz Weight (lb.): 2 Lb Country of Origin: Imported