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ZK-502M Mini Bluetooth-Compatible 5.0 Power Audio Amplifier Board 50WX2 Stereo Music Amplificad Module Home Theater AUX
Feature:
Large volume heat sink, 20x18x10mm
Protection mechanism: overheating, overcurrent and short circuit protection
Supported audio input: Bluetooth-Compatible 5.0, aux, USB flash disk, computer USB (USB flash disk file system must be fat 32, and the maximum support is 32GB)
Supported audio output: active speaker, passive speaker (only one of passive speaker and active speaker can be selected)
The power supply cannot be connected to 24V battery pack (the actual maximum voltage of 24V battery is about 28V).

Specification:
Type of product: ZK-502M
Chip scheme: domestic power amplifier chip
Audio input: Bluetooth +AUX+U disk+computer USB (plug and play)
Adaptive power supply: DC5-24V (high voltage is recommended for high power)
Adapted horn: 10-100W; 4-8Q
Number of channels: left and right channels (stereo)
Bluetooth version: 5.0 (> 15m, without occlusion)
Bluetooth name: Wuz hi Audio
Dimensions: 60x60x29mm
Product weight: about 60g
Power supply voltage: 12v-8W /12W+12W, 4W/20W+20W
15V-8 ohms /18W+18W, 4 ohms /30W+30W
19V-8 ohms /30W+30W, 4 ohms /40W+40W
24V-8 ohms /40W+40W, 4 ohms /50W+50W

Note:
1. Only when the audio input is sufficient and the power supply / current is sufficient can there be sufficient output power. The higher the power supply voltage, the greater the relative power, and the speakers with different impedance will have different output power. When the voltage and current are sufficient, the greater the number of ohms of the horn, the smaller the relative sound power. Please pay attention!
2. 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!
3. Please allow 1-2cm measuring deviation due to manual measurement.