Universal Sliding Charger for 3.6 Volt and 3.7 Volt Cell Phones, Cameras, PDAs, MP3 Players Can be used to charge cell phone or other devices by plugging into the USB port on the charger Adjustable Contacts Allow for Proper Alignment Overcharge protection with automatic current control Rapid charge - Many batteries will charge in 1-2 hours Battery and charger can charge 2 batteries consecutively