Funky Kit posted a review on the Hollyland Lark C1 Wireless Lavalier Microphones (for iPhone)
A quote from the article:
Well be taking a quick look at the Hollyland Lark C1. Its an ultra-compact premium wireless lavalier microphone, ideal for audio recording on your iPhones. It offers all-day recording battery life of up to 32 hours, and features advanced sound processing technologies, and MFi-certified Lightning interface on the Receiver.Hollyland Lark C1 Wireless Lavalier Microphones (for iPhone) Review