HP Roar Travel Bluetooth Wireless Speaker (Grey/Yellow) Audio by HP gives you rich, authentic sound on the go. Just connect your favorite device through Bluetooth, and rock on.^This battery lasts for up to 20 hours of seamless streaming, so you're never cut off from your music. The built-in power pack keeps your mobile devices charged effortlessly.^The unique cable management system keeps cables stored inside the device, so no matter what you're charging, you'll never get tripped up by stray wires.