The AGC-U-100 is a 10 Slot battery charger for the hand held audio guide player AG100. 10 slots are provided to accept 10 AG100 players. Each compartment has Orange and Green leds to give visual indication of battery charge condition. Flashing led indicator will show if a non rechargeable battery is used or if the rechargeable battery is faulty. Typical charge time using supplied batteries 4 – 5 hours depending on battery charge state. System support disc supplied, suitable for Windows 2000,ME,XP. Download interface USB 1.1/2 Power requirements 100 – 230VAC.