iPad (all models) and iPhone (6s and earlier)
iPhone model 6s and earlier and all iPad model have a built in audio port. Attach the Kenek Sensor directly to your device as shown.
iPhone 7 and later
iPhone 7 and later do not have a built in audio port and instead use an adapter. You will need a Lightning to 3.5 mm Headphone Jack Adapter from Apple to operate the Kenek Sensor. Your iPhone may have included this adapter in the original packaging. These adapters are also available from Apple on-line or in-store inexpensively. It is essential that you use only genuine Apple accessories with Kenek Apps. Third-party adapters are unreliable and may prevent the Kenek Sensor from operating.
Lightning to 3.5 mm Headphone Jack Adapter from Apple
Kenek Apps connection with Apple Lightning Adapter