Product nameSmart bicycle stem(smart bicycle gps app)Brand:OmniModel No.X1Material:Aluminum alloy and ... www.omnicycling.com, then into carton boxLeading time:25 daysSmart bicycle stem dimension:length 90mm, diameter:31.8mmBattery:main body:700mah ... 4000AmhVoltageOutput:5V, mobile voltage:3.7VWaterproof level:IPX6Payment term:TT, Western Union, MoneyGram, PaypalShipping terms:UPS,DHL,FEDEX,TNT, By air ...