This item is a Belkin Wireless-N Wi-Fi Range Extender, model F9K1015.

Purpose: Extends the range of existing wireless routers to eliminate dead spots.

Coverage: Provides up to 5,000 square feet of additional Wi-Fi coverage. 

Technology: Uses the N300 wireless protocol for speeds up to 300 Mbps on the 2.4 GHz frequency band.

Features a compact, wall-mounted design that typically does not block the second socket in a wall outlet.