Bluetooth Digital Power Amplifier Module HD Sound High Low Pitch Adjustment Amplifier Board DC15‑36V Item Type: Bluetooth Digital Power Amplifier Module Product Material PCB Bluetooth Version: 5.0 (unobstructed, Approx. 10m / 32.8ft) Number of Channels: 2.0 channels (left channel, right channel) Power Amplifier Chip: TDA7498E Output Power: Left and Right Channels 160W x two Adapted Speaker: 30 to 200W, 4 to 8 Ω Protection Mechanism: Anti reverse connection, undervoltage, overheating, overcurrent, short circuit protection Input Method: For AUX, Bluetooth, USB (dial button to switch mode and song) Adapted Power Supply: DC15-36V (undervoltage protection below 9V, can also support 12V power supply)