Acoustic Research Speakers WS2PK63 Lantern Black Speakers w/Transmitter+Adapters. Everything you need to get started, just connect your source through RCA cable. Acoustic Research 900mhz Portable Indoor/Outdoor Speakers ML# WS2PK63 AR, Tested and works great with ac adapter or batteries. Beautiful clear sound with bass boost option. Very clean with minimal marks. 2 speakers and one wireless transmitter, plus connector cable plus ac adapters for all. Speakers can run on battery or AC adapter. These are not bluetooth, you need the wireless transmitter to operate.