The best recorder for both indoor and outdoor production is the Green Lion Wireless Microphone. This wireless microphone is compatible with smartphones and has a Lightning connector. To be clear, it can be connected to any smartphone via the Lightning connector. The mute button and the cool beep are two great features that will alert you when someone speaks softly into the microphone. The wireless connection allows you to carry the microphone around with greater freedom because you are no longer connected to a wire. Details: Simple Plug & Play Wireless Connection Voice Recording with Auto Pairing Qualities: Device compatibility: A smartphone Lightning connector is the type of connector. Battery-operated power source with a 2.4 GHz frequency range