Hi my friend,This is Sherry form Meilan Technology CoWe are one of the world's leading bicycle smart products manufacturers, now our products is hot selling in Germany, UK, AU, US, Spain, Taiwan, South Korea, Malaysia, etc. In most parts of the global marketing.and we are doing smart bicycle electronic parts ODM for some famous brand. also ODM bicycle 3 inch screen waterproof GPS,BT 4.0 Bicycle computer etc. bicycle smart accessories for our Germany / USA customers Our hot selling products: X2 5400Mah bike power bank with LED light,smartphone holder,red SOS light, waterproof:IPX6 X5 Wireless remote control laser turning rear light,day/night auto ON/OFF,USB rechargeable,Streamlined,red/yellow two colours LED X6 Streamlined high brightness bicycle rear light,USB rechargeable,day/night auto On/Off,Cycling and static testing auto On/Off If you are interested,Don't hesitate to contact with me , My skype is sherry-meilanBest wishes!Sherry