The Blackgold Wireless Microphone and Audio Recorder from Mikme is equipped with a 1" gold-plated cardioid condenser capsule and is designed to capture audio for up to 360 hours. It can be used to save the captured audio to the built-in internal 16GB flash drive and stream it wirelessly via Bluetooth to iOS smart devices, or directly to your DSLR camera or mixer.The free app allows audio sync functionality with video on your iOS device, along with providing options to mix, edit, add effects, and share your recordings.