2/3 Button Remote Key Case/Shell for Mazda 3 5 6 RX7 RX8 Car Key Case Description: This item isn't a remote key, it's just a remote key shell. No remote/electronics/ignition or transponder chips. Please take the internal electronics (internal module/chip & transponder) from your original remote and place them to our key shell, then it is ok. Best replacement for broken or worn keys, or great for an additional key. Please check your key and the item image carefully. Please note, this product is shell only, it does not contain any internal electronics, transponder chip or battery. Specifications: Color: Black Application: For Mazda 3 5 6 RX7 RX8 BT50 Instructions: Open your existing key Remove internal module/chip and transfer to new replacement (Do not forget the chip) Screw/click the key back together Take your key to a locksmith to cut the blank Packing Included: 1 x  2 Button/3 Button Flip Key Case