Portable rechargeable speaker with Bluetooth connectivity allowing you to connect to a Bluetooth enabled mobile phone or smart phone for hands-free calling. Simply press the answer key and speak into the in-built mic, once finished simply press the answer key again to hang-up. Bluetooth Connectivity also allows you to wirelessly connect to a Bluetooth enabled device (Mobile Phone, Laptop, etc..). Micro SD Card slot, allows playback of MP3 files. Line In (AUX) allows you to connect speaker to a mobile phone, PC or other MP3 device. Available in black, silver, blue, red, pink.