3 Pack of Internally wired remote control switches with 2-way hand-held remote controls. 

Batteries not included.

Specification:
Output loading per way: <=1000W (general lamp) <=400W (fluorescent lamp)
Remote battery (Not include): 23A 12V
Switch size: 6 x 4.5 x 2.4cm/2.36"x1.77"x0.94"(approx)
Remote size: 10.3 x 4.4 x 1.7cm/4.05"x1.73"x0.66"(approx)
Color: White
Package includes:

3 x Switcher Receivers
3 x Remote Controls

3 x Remote Control Holders (surface mount)