iP23 Dual Alarm Clock for iPhone or iPod Wake or sleep to iPod or iPhone. Compatible with iPod Mini, iPod Nano(1-6GEN), iPod 4th&5th GEN, iPod Classic, iPod Touch(1-4 GEN), iPhone 4. Universal dock to charge and play iPhone or iPod while docked - Enjoy your music while keeping your iPhone or iPod fully charged Dual Alarm that lets you wake to iPod, iPhone, or buzzer Time Sync button, Sure Alarm battery backup for alarm during power interruptions, Universal 100-240V AC adaptor Daylight Saving Time switch, 12 or 24 hour display, Adjustable sleep timer with separate volume