We are major in Electronic for business, just like Emergency Charger use in business trip, we call it as Q battery, you can use it anyway. Another Powerful product "Mobile Power", use it in any digital products, you can enjoy hours of extended play time on notebook computers, portable DVD players, digital cameras, camcorders, MP3 players, portable CD players, mobile phones, and other portable consumer electronic products. Now Q Battery's are very popular selling in the world market. Emergency Battery for Notebook, Cellphone,Mp3, Mp4, and so on. You can use it anywhere when your Mobile are out of power!