Original Dell Axim USB Cradle Sync Dock for X50 X50V X51 X51V HandHelds + 1100 mAh Replacement Battery Recharges your Dell Axim Handheld Sports a sleek, stylish design Features an extra battery charging slot Comes with 1100 mAh High Capacity, 3.7V Battery USB Cradle and Battery for Dell X50 X50V X51 X51V