Shipping Information

Order Processing:

  • All orders are shipped the same day they are placed. However, USPS processing may not occur on the same day. This delay can be due to holidays or Sundays when we prepare shipments, but USPS processes them on the next business day.
  • USPS processing times can vary, typically taking 1 to 3 days. Please allow up to 14 days for delivery, depending on USPS logistics.

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  1. Standard Shipping (Free):

    • Method: USPS First Class Letter Mail (Small Letter) – No Tracking
    • Estimated Delivery: 2 - 9 business days

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    • Method: USPS Ground Advantage (Small Bubble Envelope) – With Tracking
    • Estimated Delivery: 2 - 5 business days

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Product Quality

  • Our products undergo rigorous inspections to ensure they meet high standards, providing a substantial half-life before any potential failure.
  • While all electronic components are manufactured in China, we maintain direct contact with the factories to ensure consistent quality across all components.

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  • We understand that accidents can happen. That’s why we offer a minimum 6-month limited warranty on all items, as long as they are used properly and within the specified range of each product.

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5pcs PAM8403


Description:

  1. Dimensions:

    • Old Version: 1.85 x 2.15 cm
    • New Version: 1.50 x 1.60 cm
      Please contact us if you have any concerns about the size.

  2. Operating Voltage: 2.5V - 5V
    Maximum Voltage: 5.5V

  3. Noise Suppression:

    • Excellent noise suppression capabilities

  4. Output Power & Sound Quality:

    • Delivers large output power with high-quality sound

  5. Stereo Output:

    • Dual-channel stereo output
    • Powered by a 5V supply, capable of outputting 3W+3W power
    • Can directly drive 4-ohm and 8-ohm speakers

  6. Class D Digital Power Board:

    • No LC filter required
    • Can be powered via a computer USB

  7. Dual Panel Wiring:

    • Properly designed to prevent crosstalk caused by ground potential balance and inter-channel interference

  8. Compact Design:

    • Miniature form factor that can easily fit into various digital products

Important Notes:

  • Do not connect the "negative" outputs of the left and right channels in parallel, as this will damage the IC.
  • Ensure that the speaker (load) is connected before powering the device.
  • If a generic rectified power supply is used, be sure to add a 1000uf 10v capacitor on the power input to avoid interference.