4 Port Charger with Speaker, Alarm, Clock & FM Radio. ORGANIZE / Charge any 4 portable media devices including phones, all at the same time, 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 sound system while charging. UNIVERSAL / Compatible with any smart device. SPEAKER SYSTEM / Plays a device through its speaker while charging. CLOCK RADIO / Wake up to FM stereo alarm clock radio. Compatible cradle for Smart phones and MP3 players. Holds up to 3 devices while charging in cradles. High Quality Sound System to Play Smart Devices. Surge protection built-in. Tidy-Cable organizer feature. Time, Alarm, Snooze functions. Battery backup for power outages. LED Night Light built-in. 12W output power. AC 110V/50Hz AC 240V/60Hz AC Power (UL Approved)