Bluetooth 5.0: Enjoy seamless connectivity with the latest Bluetooth 5.0 technology, ensuring stable and fast transmission of audio signals. Dual 50W + 100W Amplifier: Experience powerful and immersive sound with two 50W amplifiers and one 100W amplifier, delivering a total output of 200W. 2.1 Channel Audio : Enjoy high-quality stereo sound with two speakers and a subwoofer, providing a rich and dynamic audio experience. TPA3116D2 Chip : The TPA3116D2 chip ensures high-quality audio processing, providing clear and crisp sound with minimal distortion. Specifications: Model ZK-TB21 Material electronic components Color Black Bluetooth Version 5.0(no shielding, 10m) Input sensitivity 500mV Audio Introduction TO Bluetooth Channel 2.1 Chip TPA3116D2(with AM anti-interference function) Power DC12-24V5A Speaker adapter 20-100, 4-8. Output power Max.50W(R and L channel), Max.100W(subwoofer) Protection Mechanism overvoltage ,undervoltage,overhearing,DC detection,short circuit protection Size 118x100x22mm4.6x3.9x0.8inch Note: Transition 1cm=10mm=0.39inch Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! _x000D_