The Pyle PDICBT256 is a complete Bluetooth-enabled ceiling or wall speaker kit, designed to deliver high-quality stereo sound with minimal space required. This kit includes (4) 5.25” speakers that feature a high-compliance polymer tweeter and polypropylene cone for clear, dynamic sound. The speakers support wireless Bluetooth streaming from smartphones, tablets, or other devices. With a maximum power output of 150W (for all 4 speakers), these speakers provide full-range sound with a frequency response of 80Hz - 20kHz. The system is perfect for in-wall or in-ceiling installations, offering easy, flush-mountable design with both round and square grills.