ultra Mini Boost ultra compact & mini size portable speaker is a brand new product which will provide unbelievable loud sound and great bass. Size of just 3 cm, makes it highly portable to carry this wireless speakers in your jacket pocket. The built-in microphone makes it convenient for users to answer calls hands free. This mini bluetooth speaker is compatible with all smartphones, tablets, personal computers or other devices which has built-in bluetooth . This product is ideal for home, office, party and travel use. When you will see the product in real, you will come to know that its unbelievably small & even Bhrata after being that small in size, it produces so loud & clear sound.