Bluetooth Speaker , Nfc , Ultra , Bass, Booster , Powerful Clear Sound , Subwoofer Effect , Built in Mic for Smartphones , Tablets , Laptops , Computers Numatech (Black) Mini Bluetooth Speaker Elegant Design Built-in microphone for hands-free speaker phone calling Easy to pair -No pin code needed AUX Connecting with out Bluetooth,Portable The rechargeable Lithium-ion Polymer battery(143442) delivers up to seven hours of playtime Just enjoy the music freely Portable Speaker