Proxelle Surgepower-Pink Portable Wireless Bluetooth Speaker with Built-in Power Bank Plus 2 USB Ports, Get Epic Audio Wherever You Go, Pink Superb sound quality: Bluetooth 4.0's better-than-ever-before sound system makes for audio that's completely free of background noise Audio for hours: Blast this speaker all you want - it's got 12 hours of playback time, 20 hours of talk time, and 800 astounding hours of standby time Rugged to the max: Take this speaker wherever you go with complete confidence - it's dustproof, so it won't get damaged on hikes or campouts