Sell samrt watch Pedometer Sport Tracker Heart Rate Monitoring bluetooth call best price

-Single recording -Voice Callback -GPS positioning query -Sound query around the product -Location tracking query -Locate real-time tracking -Automatic charging function Description 1. Appearance size: 3.5cm * 2.0cm * 1.4cm (L * W * H) 2. Charging input InputAC110－220V50 / 60Hz 3. Charging output: OutputDC5.0V 300-500mA 4. Machine battery: 3.7V 400mAh Li-ion battery 5. Standby time: 12 days. Working time 4-6 days 6. Expansion card; Mini TF card 7. Continuous call: 150-180 minutes 8. Network format: GSM / GPRS 9. Storage temperature: -40 ° C to + 85 ° C 10. Working temperature -20 ° C to + 55 ° C 11. Humidity range 5% -95% non-condensing 12, GPRS: Upload60, TCP / IP 15, working voltage: 3.4-4.2V DC 16 Standby current: ≈2.5mA 17, open voice control current: ≈30mA 18, call current: ≈150mA 19, GSM positioning time: 25 seconds Basic parameters: frequency band GSM850 / 900/1800 / 1900MHZ Professional Services In our store, if you have any doubts about our products, please feel free to contact us. After you receive the product, if you have any question about the use of methods and product performance, we will provide you with professional, caring sales service.