1.Emergency No matter where you are, even if no AC, you can also charger mobil phone in time and ring up when you are Moving. 2.hig- Efficiency Charging 100 -180 minutes, 90% energy of one 5th battery can be transferred to the mobile phone battery. According to the conditions of mobil phones and network, could make mobile phone standby 24 hours or talk up to 100 -180 minutes. 3. Fashion Fashional appearance, professional and exquisite design,small size (a little bigger than the 5th battery), portable. 4. Convenience Just using one 5th alkaline battety or Ni-MH rechargeable battery, could charge a mobile phone. 5.safety Using overvoltage circuit, carefully protecting your mobil phone, charging intelligently and using safely. 6. Applicability A variety of changeable plugs are availble ,applying to any brands of mobil phones. At present, our company assembles switch wires applying to Nokia 7.0 series, Motorola V3 series, Anycall D800 series, Sony Ericsson4 K750 series. In addition, customers also could taior switch wires of any brands of mobil phones according to their requests. 7.Plentiful coluors Various colours are available and customers also could require different colours according to their preferences. At present, our available colours is red, yellow, blue, silver, purple and so on . Our products output voltage of 5.5 V-5.9V through the power of one 5th battery,which apply to not only mobile phone but also other digital products such as MP3, MP4, digital cameras etc.