5pcs Wireless Remote Control as shown. Working voltage: DC3V (CR2032). Working current: ≤10mA. Operating frequency: 433MHz. Transmit power: ≥10mW. Launch distance: 30-50m (open space). Frequency deviation: -0.2MHz ~ +0.2MHz. Transmission rate: 50--60KHZ. Modulation method: ASK. Oscillation resistance: 330K. Working chip: EV1527 (learning code remote control). Working temperature: -20°C ~ +70°C. Storage temperature: -10°C ~ +50°C. Weight: 22g. SIZE: 50*13mm, button diameter 30mm. Operation method: The setting of the remote switch is determined and cannot clear the code. Applications: Wireless RF remote controls are widely used to transmit data and signal control, mainly used for remote control electric retractable doors, remote control gate brakes, remote control shutter doors, garage doors, sliding doors, remote control LED lights, remote control fireworks igniter, remote control passenger car door, anti-theft alarm, electric door alarm, video surveillance shaking machine, wireless curtains, door locks, remote control of pumps, industrial control products, etc. Package included: 5 x 3V 433MHz Wireless Remote Control