Remotely lock and unlock your car. Raise window output with LED indication light. With trunk release button. Remote car parking location finding. Flashing alert. Electric lock and air lock option. ACC test, auto lock & unlock your car. Universal, suitable for almost all car types. Type:Keyless Entry System Main Unit Input Voltage:DC 12V ± 2V Working Current:0.8mA Main Unit Frequency:appr. 433.92MHz Product Function:Remote lock (and automatic window raising) remote unlocking/remote trunk opening (the for original trunk needs to have a motor)/sound reminder/horn reminder/LED working light indication. Power Supply:CR2016(Not included batteries) Each key needs 2 pcs batteries, so one whole kit needs 4 pcs batteries. Note:Due to different production batches, there may be slight differences in products. Colour:As Shown Material:Plastic Package Contents: 1 * Car Alarm Systems Only the above package content, other products are not included. Note: Light reflection 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.