... / altimeter / timer 2.CE,Rohs 3.pc download GPS sport watch / gps navigation watch with 5.3khz frequency 2013 MODEL DPO Product ... Features1. High-Sensitivity, GPS watch That Provides Exceptional Signal Reception2. ... Dongguan, Guangdong, with over 500 workers, strict QC / QA system, CE / RoHs certificatedProduct ShowSoftware