AR Acoustic Research AW871 Wireless Stereo Speakers w/ Transmitter Working. The set of speakers with transmitter and all power supplies has been fully tested and works as it should. Battery compartment is clean and never seen batteries. Speakers are in great condition, fully tested fully functional. Please look closely at pictures for condition, description, and specifications. If you have any questions, please let me know. Thanks and have a great day. Please check out my other listings as there is something for everyone.