Aideepen ZK-TB21/ZK-TB21S/ZK-HT21 Bluetooth 5.1 Digital Power Amplifier Module 2.1-channel Stereo 2*50W 160WX2+220W AUX Digital Power Amplifier Board Speaker Home Music Wireless Module Audio High and Low Pitch Subwoofer

KKmol. Package Included: 1 power amplifier module. Specification: Product name: 2.1 channel Bluetooth audio power amplifier module. Product model: zk-tb21. Bluetooth version: 5.0 unobstructed, 10m). Input sensitivity: 500mv. Input method: auxiliary Bluetooth. Number of channels: 2.1. Power amplifier chip: tpa3116d2 with am interference suppression function). Adaptive power supply: DC1224V/5A or above the higher the voltage, the greater the output power). Adaptive speaker: 20100W, 4 8. Output power: up to 50W for left and right channels. Subwoofer up to 100W. Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection. Product size: 120mm100mm20MM. Product weight: about 256g including packaging). Product selling point. 1: Power amplifier chip: TDA7498E. 2: Protection mechanism: anti-reverse connection, undervoltage, overheating, overcurrent, short circuit protection. 3: Widely used. 4: Long-life ultra-quiet fan blocked rotor does not burn, no n