zk-TB21แอมป์จิ๋ว bluetooth เสียงใสๆ

Product name: 2.1 channel Bluetooth audio amplifier module Product model: ZK-TB21 Bluetooth version: 5.0 (unobstructed, 10 meters) Input sensitivity: 500mV Input method: AUX+Bluetooth Number of channels: 2.1 channels Power amplifier chip: TPA3116D2 (with AM interference suppression function) Adapted power supply: DC 12-24V/5A or above (the higher the voltage, the greater the output power) Adapted speaker: 20-100W, 4-8 Ω Output power: Left and right channels ≤ 50W Subwoofer ≤ 100W Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection Product size: 120mm * 100mm * 20mm Product weight: approximately 256g (including packaging)