1SENSITIVE: The automatic door opener remote control is small and portable, easy to use, with responsive control and convenient operation. 2PORTABLE: This set includes 2 automatic door remote controls, each with a key clip, allowing you to attach them to a bag or belt for easy carrying and storage. 3LONG DISTANCE REMOTE CONTROL: The remote control offers an operating range of up to 40 meters. 4MULTIPURPOSE: Suitable for controlling automatic doors and equipment such as chicken coop doors, warehouse doors, and underground garage doors. 5PREMIUM MATERIALS: Made from ABS and zinc alloy materials, this remote control is durable and built for long-term use. Item Type: Remote Controls Material: ABS, Zinc Alloy Chip: HCS301 Rolling Code Frequency: 433.92MHz Effective Distance: Approx. 40m/131.2ft Number and Type of Batteries: New Type: 1 x 27A Dry Battery (Not Included); Old Type: 1 x CR2032 Button Cell (Not Included) (New and Old Type Random Delivery) Purpose: Remote Control for Automatic Door Opener Package Includes: 2 x Remote Controls, 1 x Manual