3ft ReadyPlug USB Cable for Livescribe SmartPen Echo 2GB, 4GB, 8GB USB A-B Micro Cable. Charger cord USB Cable for: Livescribe SmartPen Echo 2GB, 4GB, 8GB Length: 3 Feet (1 Meters) - Color: Black Data Transfer Charger Cable For PC or Mac Computer ReadyPlug Lifetime Manufacturer Warranty