Features: Experience powerful sound with the D60 50W Bluetooth-compatible Amplifier Board, featuring optical auditory output for immersive that transforms your experience. With a low heat digital chip, this amplifier ensures stable performances and long use while delivering deeply bass sound and highly sound. Double microphone input with adjustable reverbs. Support AC110V/220V or DC12V/24V voltages. Perfectly for home gatherings, music enjoyment, outdoor activity, and small performances, bringing powerful sound to any setting. Crafted from durability plastic and metal, this amplifier board for use in various countries. Specifications: Model: D60 Power： 50W Support: Bluetooth-compatible Support：DC12-24V AC110V-220V Size：about 175x80mm/6.89x3.15in Component: Plasic and Metal Mounting Hole Spaceing:about 65mm/2.56in Loudspeaker Opening Size:about 5x15.50cm/1.97x6.1in Standard：European Package Includes: 1Set D60 50W Amplifier Board note: Due to problem of lighting effect there might be tolerances in product, please understand. Please allow 0-2mm error due to manual measurement.