The Anker Roav SmartCharge AF9 Bluetooth FM Transmitter Wireless Audio Adapter is a small and sleek black device that is universally compatible with various brands and models. It features Bluetooth wireless output connection, charging capability, and a jack connector for easy use. This portable audio accessory from Anker is designed to transmit audio wirelessly through FM band, making it a convenient and versatile option for on-the-go use. With its compact size and lightweight design, the Anker Roav SmartCharge AF9 is a practical choice for those looking for a reliable Bluetooth transmitter.