BEM Wireless Speaker Mojo Bluetooth Speaker with Powerbank - Red Blue Easy charging with conductive base Charging base doubles as portable power bank for other mobile devices Passive speaker for incredible bass response Up to 16 hours playing time on one charge Microphone for speakerphone function Compact size Touch-senstive buttons for easy operation Bluethooth 4.0 pairing with compatible devices 40 ft. operation range 600mAh internal speaker battery; 1800mAh internal charge base battery This remarkable Bluetooth speaker delivers rich, precision-tuned sound so you can enjoy your music wirelessly for up to 16 hours on a single charge The included charging base lets you recharge the speaker even when youre away from power outlets, thanks to its own internal 1800mAh rechargeable battery The charging base also doubles as a convenient portable power bank for other mobile devices, keeping your gear charged up when youre on the go Slightly smaller than a tennis ball, the Speaker Mojo is so compact you can take your music virtually anywhere you want