How much does this cost to the nearest dollar?

21 Pack - SnapPower GuideLight 2 For Duplex Outlets - Replaces Plug-In Night Light - Electrical Receptacle Wall Plate With LED Night Lights - Auto On/Off Sensor - (Duplex, White)
EASY INSTALL - You don't have to be an electrician or magician to install the Guidelight. It was designed for a truly simple, safe solution to the household nightlight. It does not require brackets, batteries, mounts, or wires. Just snap it on and go. FREES UP OUTLETS - You can finally use all of the outlets in your house. Don't let standard, bulky night lights dominate your hallways, bathrooms or children's bedrooms anymore. ENERGY EFFICIENT - The Guidelight cover plate costs less that 10 cents per year to power

Price is $288.00

Price: $287.98