1、This is an attractive and lightweight remote control, small enough to hold a key chain, so it's not bulky at all, and it's easy to carry when going out. 2、Low power consumption, flexible operation and convenient installation. Strong wireless signal can pass through walls, floors and doors. 3、4 channel wireless remote control. Adjustable working mode, on/off. Can be switched or locked instantaneously. 4、This wireless cloning remote control has faster copy data speed for a long distance, and it is not easy to lose codes. 5、Duplicate your existing remote controllers for car, garage doors, gates, heating systems, home automation lighting and alarm system, etc. Item Type: Cloning Remote Control Material: ABS Working Frequency: 433MHz Distance Frequency: 100m / 328ft (In an open place, receiving sensitivity is -100dbm) Oscillation Mode: Saw Resonance Modulation System: ASK Button: 4 Button Built-In Battery: Dry Battery Built-In Battery Model: 27A 12V Built-In Battery Capacity: 22mAh 1 x Remote Control