Audionic Atom Speakers have powerful audio system with an innovative design and balanced sound. It is a great choice for your portable audio needs. It is small, light weight and handy enough to be carried everywhere. The Atom Speaker has an intense sound with its adjusted audio. The design of the speaker is magnificent and stylish, match everyone?s needs. The best sound bass with advance features makes it a no 1 choice for everyone. It would be great for your versatile sound requirements as its light weight allows you to take it anywhere. The speaker has Built-in Li-Battery 3.7/1000 mAH and Power Input USB 5V and frequency response is 60Hz ~ 20KHz. The uniquely designed speaker, with superior powered and impressive outlook made it unmatchable in the market.