4Ω small speakers can be output directly, it has enough output power, energy and good sound quality.

• Excellent noise cancellation.
• If the ear is close to the speaker, there will be no audio input.
• It can be easily placed on various digital products in a small space.
• It has high efficiency.
• Dual channel stereo, 5V power supply can provide 3W+3W power output.
• Model: HW-323
• Color: Red
• Size: 24×15.5×3mm
• Power: DC 1A(DC): 5V
• Output power: 3W+3W (4 ohms)
• Noise to signal ratio: 90dB
• Productivity: >90%