• built in ANT+ radio transceiver
  with support for all current and future ANT+ sensors

• fits iPhone 3G, 3GS, 4, 4S from all carriers!
  ships with custom rubber liners to easily adapt between phone types
  Not sure of your iPhone model?

• Wahoo Fitness Powered
  supported by most of the leading iPhone fitness Apps

• water and shock resistant

• bike mount
  with quick release for Case/semi-permanent mount attachment to bike. Adjustable portrait or landscape orientation

• microUSB port
  microUSB port for charging/data connection with tethered rubber plug when not in use

• fully accessible/functional touch screen access

• universal mounting rail
  for bicycle mount and auxiliary battery

• optional auxiliary battery (soon to be released) 
  Wahoo Fitness rail mounted 2.3 AmpHour battery (1.5x that of the iPhone battery) or any auxiliary battery with microUSB plug compatible

• sends and receives signals up to 10 feet
  unobstructed