Place of Origin: Guangdong, China Brand Name: SKYRING TECH Model Number: SK-SP1 Display Type: TFT Screen Resolution: 320x240 Feature: GPS Navigation, MP3 Playback, Touch Screen, bluetooth Display Color: Black / White Operation System: ANDROID Certification: CE, FCC, rohs Screen: < 2", 1.40'' color screen Design: Bar Function: Calendar, Speed Measurement, Heart Rate Tracker, Blood oxygen monitor Waterpfoof Level: IP67 Battery Type: Polymeter Lithium Battery Battery Capcaity: 160mah Charging Time: About 2 hours Endurance Time: Can use 7days,Standby Day: 15days Manipulation Mode: Full touch control, mobile phone APP control Color: black Product NW: 38g Box Szie: 248*38*11.3MM( L*W*Thickness)