General description 1 Pcs Dual Mode Virtual Navigation Wall Barrier is designed for use with 600/700/800/900/E/I/S Series Robots. It utilizes an infrared beam to block doorways and other off-limit areas, ensuring safe navigation for your robotic devices. Technical specifications Size: 4.3 x 4.3 x 10.5 cm Material: ABS Color: Black Power Requirement: Requires 2 AAA Batteries (not included) Measurement Error: +/- 1-3 cm Other information Package Contents: 1 x virtual navigation wall barrier Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.