... MP4, IPOD,DV 2.Equated to 2-3pcs cellphone battery 3.Standby 30days 4.CE,FCC,RoHS ... PSP, MP4, IPOD,DV1. Equated to 2-3pcs cellphone battery,standby30days,Charge-discharge cycles at least 500 times. ... The useful life is more than five years. 2.With LED torch function, Double-click power on key ... the same double click to turn it off. 3. With five standard interface for different brands of cellphones.4. ...