This Sony RF Transmitter TMR-RF90/SRS-RF90R wireless speaker set comes with two units and their respective AC power adapters. These speakers are compatible with any suitable RCA or headphone jack-enabled device, making them versatile and easy to use. The audio inputs of these speakers include both RCA and headphone jack, allowing for a range of audio sources to be connected.

With the brand name Sony and model number TMR-RF90, these wireless speakers are sure to deliver high-quality audio performance. The unit quantity is one, and they fall under the categories of Consumer Electronics, TV, Video & Home Audio, and TV, Video & Audio Accessories, specifically Audio/Video Transmitters. Get ready to enjoy your favorite tunes with these powerful and convenient wireless speakers.