From China Office: *The information below might be affected by the actual situation. By Sea (25~35 days) By Air (15~20 days)   From US Warehouse: By UPS/FEDEX (3~7 days) Note: The delivery time of pre-sale products is subject to the arrival time.   *Please be aware that due to the board having its battery included, we will only be able to see the tracking updates after the board is released by the US customs and picked up by the local delivering company (i.e. UPS/DHL/FEDEX/DPD, etc.）