ZK-HT21 TDA7498E 2.1Channel Bluetooth Digital Power Amplifier Module 160W*2+220W Feature: 1.Powerful Amplifier Chip: Digital amplifier module built-inTDA7498Echip ,it can provide high-quality sound with low distortion due to the powerful amplifier chip.The TDA7498E chip ensures that you can enjoy music with clear, rich, and dynamic sound. 2.Multiple Protection Mechanisms: With multiple protection mechanisms of audio power amplifier module, you can be sure that your device and speakers are protected at all times.anti-reverse, undervoltage, overheating, overcurrent, short circuit protection 3.Versatile Usage: Digital power amplifier board module can be used in a wide range of settings, including at home, in the car, and during outdoor activities. 4.Long-Lasting Silent Fan Technology: The silent fan of stereo power amplifier module can ensure that the amplifier stays cool and operates smoothly, even during extended use.The long-lasting silent fan technology also ensures that you don't have to deal with any distracting noises while enjoying your favorite tunes. 5.Easy To Use: The user-friendly design ensures that you can start enjoying high-quality audio without any hassle. Specification: Compatible Audio & Video Equipment Style: Amplifier Model Number: Digital Amplifier Module Weight: 390.00 g Product model: ZK-HT21 Suitable for Bluetooth-Compatible version: 5.0 (accessible, 15 meters) Input method: AUX+for Bluetooth-Compatible +USB (dial button for switching modes and songs) Number of channels: 2.1 channels (left channel+right channel+subwoofer) Amplifier chip: TDA7498E Adapter power supply: DC15-36V (undervoltage protection below 9V, can also support 12V power supply) Adaptive speaker: 30-200W, 4-8 Ω Output power: left and right channels ≤ 160w, subwoofer ≤ 220w Protection mechanism: anti reverse connection, undervoltage, overheating, overcurrent, short circuit protection Product size: approximately 145x126x28mm/5.70x4.96x1.10inch Tip: When the audio signal input is large enough and the power supply voltage/current is large enough, there will be sufficient output power! The higher the power supply voltage, the greater the output power, the smaller the speaker impedance, and the greater the output power! Please ensure that the power of the adapter is greater than the actual working power of the amplifier Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. Package Includes: 1pcs*Amplifier Board