Duplicate your existing remote controllers for use with vehicle central locking systems, garage door access control systems, electronic gates, electrical appliances, car sunroofs, heating systems, light switches, and more. This item is suitable for home use. The rolling code can also be copied. Working voltage: DC3V Working current: ≤ 12mA Operating frequency: 433MHz Transmission power: ≥ 10mW Reference distance: 50 meters (open and undisturbed) Frequency deviation: ± 0.2MHz Transmission rate: 50-60KHz Encoding method: 1527 learning code Due to different batches, there may be differences in product appearance and printed text, which will not affect functionality. Color: Black Material: Aviation aluminum + brass Package Contents: 10 x Remote control Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement error allowance: +/- 1-3 cm.