<p>[Easy to Use ]We have made transmitter and receiver working together and test it before ship it,when you don't need to do anything ,just install it. STRONG SIGNAL--Adopts technology , signal can pass through walls, floors and doors, steadily control receiver from any place within a reliable distance. Max range is up to 984ft with no obstacle.</p> <p>High Power Load: With 30A relay of receiver , which can load high-power electrical appliances to long-term stability control.</p> <p>[Security Control]:Learning code has high-level security for its low repetitive rate and re-learn mode, it can delete the old code and re-learn a code,when a remote control get lost. So you could always control of it.</p> <p>[Easy to Use]:Extremely easy to setup, learn, relearn and control. Stable and reliable performance, high receive sensitivity.Configuration of two remote controls(alkaline 12V 23A batteries),more flexible use.</p> <p>Wide Application:It is mainly used in lamps,electric doors,,gate,industrial control and security industry and other fields.</p> <p>color:White</p> <p>Material:ABS</p> <p>size:8.53 x 4.37 x 3.02 cm</p> <p>Package Contents:</p> <p>1 x Receiver module (KR2201B) ( include Shell )</p> <p>2 x Remote Controls (include battery)</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>