1、APPLICATION: Button remote control is suitable for remote control switch, burglar alarm, remote control door lock, remote control electric rolling shutter door and window, industrial control products, etc. 2、SENSITIVITY: Wireless copy remote control has a signal range of 50‑100 meters, the sensitivity of the receiving device in the open environment ‑100dbm. 3、EASY TO REPLACE THE BATTERY: Round remote control is very easy to replace the battery, open the back cover can be, equipped with three CR2016 batteries. 4、TRANSMISSION DISTANCE: Round wireless remote control in a relatively large wireless interference environment, the transmission distance may be shortened. 5、COMPACT AND CONVENIENT: Wireless copy remote control switch small size and light weight, easy to use, suitable for home, corridor, office, garage. Item Type: Wireless Copy Remote Control Material: ABS Operating Frequency: 433 MHz Working Method: Copy Housing Material: ABS Operating Voltage: DC3V Static Current: 0.1uA Transmitting Current: 7.1mA Transmit Power: 3‑6dBm Learning Code: 1527, 2240 Remote Distance: 50‑100m/54.7-109.4yd (in The Open Environment, The Sensitivity of The Receiving Device Is ‑100dbm) Battery Type: Button Battery (Shipped with Built in Battery) Battery Model: CR2016 Battery Capacity: 200mAh Number of Batteries: 3 Product Size: Approx. 45mm/1.78in Gross Weight: 18g/0.63oz 1 x Wireless Copy Remote Control 1 x Double Sided Adhesive