Not sure how long it will last. But just got a price alert that a seller in Amazon lowered the price to 6.99 plus 3.99 shipping
GE Add-On Switch for GE Z-Wave, GE ZigBee and GE Bluetooth Wireless Smart Lighting Controls, NOT A STANDALONE SWITCH, Includes White & Light Almond Paddles, 12723
The GE Z-Wave Smart Lighting Control On/Off Switch allows you to operate the switch by itself or easily integrate the switch with two-way, three-way or four-way wiring configurations by adding the GE Auxiliary switch for Z-Wave. The on/off switch replaces your current light switch, uses your existing wiring, and provides Z-Wave wireless and in-wall control of overhead lighting.