Key Specifications/Special Features: 1. Output voltage: 6V, charge mostly cellular phones and MP3 / MP4 2. Charge time: up to only 2 hours of charge time 3. Safe protection: overflow current and short circuit protection Product features : 1. Using a 1.5V AA battery 2. Charge current: 250mA, up to 450mA (varies with usage conditions) 3. Inner circuit can be seen due to cap consisted of transparent PC material 4. Sleeve color: red, blue, black and silvery 5. Red LED indicates the charge course 6. Provided with 12 phone-specific connector plugs 7. Sleeve dimension: 21 x 72mm 8. Up to 90 hours of standby time 9. Up to 120 minutes of charge time 10.One replaceable AA battery 19.Applications: the charger is available for PMP/MP4/MP3 players, digital cameras, camcorders, P-DVDs, PDAs,cellar phones (NOKIA,MOTOROLA,SAMSUNG,SONY ERICESON,ETC.), Gameboys/Gameplayer and other similar devices (most brands and models)