... / timer 2.CE,Rohs 3.pc download GPS sport watch / gps navigation watch with 5.3khz frequency 2013 MODEL DPO Product Features1 ... mAH Li-ion 3.7 Volts batteryBattery Life12 months in power save mode; max.8 hours training mode. Charge ... pedometer, altimeter, compass, etc. Factory: Located in Dongguan, Guangdong, with over 500 workers, strict QC / QA system, CE / RoHs certificatedProduct ShowSoftware