Six more have been listed separately...The product is a genuine Microsoft Sculpt Ergonomic Wireless Keyboard 1559. It is black in color and has a QWERTY (Standard) keyboard layout with an English keyboard language. The keyboard is wireless and has wrist rest built in. However, the receiver is not included. The keyboard is missing its battery cover plus  no lifter, no number pad, and no mouse are included. All 8 have been delivered. I have other 1559 keyboards listed separately that originally would have come with the necessary dongle in its battery compartment to communicate period. This listing had kb's where its needed dongle originally came with and was stored in its mouse. As Far As I KNOW you CANNOT USE A DIFFERENT DONGLE THAN THE ONE THAT ORIGINALLY CAME WITH THE DEVICE. I would also advise against melting plastic AS IT CAN BE TOXIC. If you are looking for a working ergonomic wireless or wired keyboard I usually have some in stock (but not under this listing). They will almost always be listed as Used after they have been fully tested. All USED printers and keyboards are always cleaned up and retested when ordered before they are wrapped and shipped to you. A use for a not working for parts keyboard in this instance would be for a person who has a 1559 but had lost a key or keys with faded letters. However; TO BE CLEAR and to the best of MY KNOWLEDGE, The keyboard cannot be directly swapped for your unusable 1559 keyboard, it will not work with your dongle.