Logitech io2 Commercial Pen Set

Logitech io2 Commercial Pen Set ... stylish design and smooth finish only add to its appeal. It also contains an ink cartridge so that you can always see what you have written or drawn. The pen cap serves as the on/off switch, while the hole in the clip can be used to remove the ink cartridge. The two tricolor LEDs provide battery and memory status information. You can use the Logitech io for up to 25 pages before the battery needs recharging. Green indicates the battery is at full charge. Yellow indicates the battery is less than 50% charged. And red indicates the battery is low and you must recharge it soon.