Bluetooth remote control module for Siku Control crawler excavator. Protocol: Bluetooth. Model selection (A / B / C), can be paired with up to 3 models. Compatible with Liebherr R980 SME 6740 / 6741. Power supply: 4x 1.5 V AA batteries (sold separately). SIKU was founded in 1921 by Richard Sieper in Lüdenscheid and is the origin of today's Sieper Group as well as the company SIKU, which was established in 1950. In 1984, the traditional Berlin company Wiking Modellbau, known for its collectibles, was also acquired by the Sieper Group. SIKU manufactures mechanical and remote-controlled toy models in various scales that are detailed, robust, and equipped with a variety of play functions. The company's headquarters in Lüdenscheid houses development, design, sales, administration, and production. Additional production sites are located in Poland and China, as well as its own sales offices in France and Hong Kong. SIKU is part of the ICTI CARE Process, an initiative of the World Toy Industry Association aimed at establishing an ethical manufacturing program with fair treatment of workers and safe working conditions.