FMN Certificated Bluetooth Version: 5.2 Max RF Output Power: ? 4dBm (EIRP) Battery Mode: CR2032 Battery Type: 3V Li-Mn Button Battery Rated Capacity: 240mAh Operating Time: 12 Months and Higher Compatibility: iOS devices running iOS 14.5, iPadOS 14.5 or later For iPhone, iPad, Mac