Feature: 1. Scope of Application: The remote controller is widely used, mainly for electric retractable doors, elevators, street doors, roller shutter doors, garage doors, sliding doors, LED lights, fireworks igniters, bus doors, anti theft alarms, electric door alarms, MP3 motorcycle anti theft alarms, etc. 2. Wide Applications: Universal wireless learning code digital remote controller is very suitable for garage doors, car skylights, car or motorcycle alarms, as well as electrical appliances or home automation, such as lights. 3. Modern Technology: The latest modern design and technology is equivalent to a simple intelligent and unique remote control. 4. 1000m Signal Range: Large range of launch, 1000 meters of space without interference, depending on the specific environment. 5. Lightweight and Small: The light weight and small size make it easy to carry and store, will not increase your burden, can bring you more convenience. Specification: Item Type: Remote Control Material: PE Color: As Pictures Shown Weight: Approx. 40g / 1.4oz Operating Frequency: 433M Coding Format: Fixed Learning 1527 Modulation Mode: ASK Remote Control Distance: Approx. 1000m / 1093.6yd (Open Place Without Interference) Battery Type: Dry Battery (Delivered Without Battery) Battery Model: 23A 12V Number of Batteries: 1. Package List: 1 x Remote Control