"On 6/30/2008 I placed an order for a di-GPS-Pro for use with my Nikon D300. The unit was shipped from Hong Kong on 07/01/2008 and arrived in my home in KY on 07/02/2008 before 10:30AM. The unit was in good working order and acquired the signal from INSIDE my home in about 1 minute.Communication with my D300 was flawless."