ORGANIZE / Charge any 3 portable media devices including phones, simultaneously, in one location. CHARGE / SCD (Smart Current Detection) adjusts the current flow to ensure proper charging to each device. PLAY / Display and listen to one device on Dok"s speaker system while charging. UNIVERSAL / Compatible with any smart device. SPEAKER SYSTEM / Plays a device through its speaker while charging. Compatible cradle for Smart phones and MP3 players High Quality Speaker System to Play Smart Devices. Surge protection built-in. 1.5W output power. Power ON/OFF switch. Power ON/OFF indicator. AC 110V/50Hz~AC 240V/60Hz AC Power (UL Approved).