The BRICK - Ultra Portable Mini Wireless Stereo Bluetooth Speakers for All Devices with Bluetooth Capability - 10 hours Playtime (rechargeable battery) / with Built-in Mic for use as a Powerful Handsfree Speakerphone Play music wireless from your smartphone, laptop, or any other Bluetooth capable device Long lasting rechargeable battery gives you 10 hours of playtime Amazingly strong and clear sound with 360 degree surround sound Also connects to PCs, MP3 players or any other music source directly through the AUX-in port (AUX cable included) Doubles as a phone speaker: Features a built-in microphone for hands-free calls in the car, home, office, etc.