Control your Satellite Plus + LED light. Based on infrared (IR), controls immediately (no pairing needed.) Requires line of site to operate. Includes battery. Compatible with: Satellite LED Plus+ LED: 4005, 4006, 4007, 4008 Details: Dimensions: 4.5” x 2.5” x 0.3”Battery (included): 3V CR 2025 Lithium Compatible with Current USA Satellite Plus +