Removing/inserting the accupack BA 10 Note: Before using the handheld transmitter for the first time, remove the protective foil from its accupack. To remove the accupack: Simultaneously press the two catches and pull the accupack away from the handheld transmitter. Remove the protective foil. To insert the accupack: Slide the accupack onto the handheld transmitter as shown. The accupack locks into place with an audible click.