Marvin, Thanks for the reply. It is called GSpace GS-R213. From the seller (a China website) it is same as Holux GR213 manufactured by a sister factory of Holux in mainland China. He claimed that it use SiRFStar III, but didn't response to SiRF mode. I am still holding the payment because I suspect it is not SiRFStar III. THat is why I have to find out as soon as possible. Any help would be much appreciated.