Product Details:<br />Brand: IGPSPORT<br />Name Bicycle Waterproof Wireless Speedometer<br />Waterproof: IPX6<br />GPS:High sensitive GPS<br />Screen:3.0*3.8cm，high brightness，high contrast，anti-glare screen<br />Weight:about 59g<br />Connection:Micro USB<br />Memory:About 90 hours data(depend on the memory usage)<br />Battery:Built in lithium battery，about 25 hours(without backlight)<br />Package include:<br />IGS20E*1，Micro USB Cable*1，Bike Mount*1，O-rings*4，User Manual*1<br />Note:<br />​Because the Time zone is different，so it's need time zone setting according to your time zone.If still have any problem，you can contact with us，we will help you resolve it.<br />Do not recommend heavy rain for a long time!<br />More information please visit IGSPORT official website:www.igpsport.com<br />