Multicode compatible 1-button remote control transmitter. Digital format with 10 dip switches, 1,024 possible code combinations. Includes heavy duty Eveready 9 Volt battery and built-in LED light to indicate battery strength. Dimensions are 3 3/4""x2 1/2""x7/8"". Full manufacturer warranty, Made in the USA. WILL NOT work with Stanley SecureCode opener systems.Battery, visor clip, and coding instructions included. "