Transformers Music Label Optimus Prime Convoy Docking Bay Speakers (G1 Color Ver) Takara. The item "Transformers Music Label Optimus Prime Convoy Docking Bay Speakers G1 Color Ver" is in sale since Wednesday, November 22, 2017. This item is in the category "Toys & Hobbies\Action Figures\Transformers & Robots". The seller is "it_toys" and is located in Kuala Lumpur. This item can be shipped worldwide.