Product Description SST-6202 Solar Mobile phone charger 1. A pocket size solar charger that charges your Mobile Phone, MP3, Mini Disc/Cassette player etc. 2. Has built-in battery cabin where you can charge 5 pcs of AAA battery, and therefore can serve as a battery charger or backup power source 3. With flashing ?harging?green indicator, and ?attery full?red indicator 4. Has built-in circuit to prevent over charging, over discharging and reverse charging.