Yes, you can use the post boxes at the airports.
Airport postboxes are usually located on the departure floor.
For airport postbox locations, please refer to the airport postbox locations page.
Please note you need to return the device before proceeding to the restricted area (areas after security check).
*Please do not ask the airport staff to return it for you as they may not take responsibility when it's lost.
**At our Airport counters, they are only for pickup, so they cannot accept return items. Please drop it in a Post Box ONLY.