HP Roar Plus Bluetooth Speaker, White/Blue Premium sound: New Smart Amp technology delivers fuller base and crystal clarity Portable: Cable free with up to 30 feet Bluetooth connectivity. Continuous play: Up to 12 hours battery life. New sound shaping software with a unique triangular design delivers enhanced audio sound. 7.4 x 2.9 x 3.1 inches Convenient speakerphone functionality Noise cancellation for clear calls Charge smartphones with USB port Premium sound: New Smart Amp technology delivers fuller base and crystal clarity Portable: Cable free with up to 30 feet Bluetooth connectivity. Continuous play: Up to 12 hours battery life. New sound shaping software with a unique triangular design delivers enhanced audio sound.