1.  Working voltage: 2.5v-5.5v.Note: the power supply voltage shall not exceed 5.5v, and the positive and negative power supply shall not be connected to the reverse.
2. Speakers: 4-8 euros, recommended: 4 euros;Horn power: 2-8w.
3. It can be powered by computer USB port 5V power supply, mobile phone charger USB port 5V power supply, or lithium battery power supply.
4. High efficiency 90%, 4 Ω load and 5 v power supply conditions, can provide 3 w (left sound channel) + 3 w output power (right sound channel).The efficiency of class A, class B and other power amplifiers is only about 30%, and class D power amplifiers are highly respected under the current green trend.
5. Class D amplifier is highly efficient and will not affect sound quality due to temperature rise. Moreover, it does not need to add heat sink and occupies a small volume.

Application:

1. LCD TV, monitor
2. Notebook computer
3. Portable loudspeaker
4. Portable DVD player, game console
5. Cell phone/hands-free phone

Precautions for use:
Switch on the speaker before switching on the power supply, otherwise it is easy to damage the chip;
Because the digital volume control in the module has a large gain, do not let the audio signal input is too large and cause the signal to produce cutting limit.

1. We can ship the items by DHL, FedEx, TNT, UPS, EMS, Aramex and China Mail Post.

2. We need 1-7 days to process the goods after the payment arrived.

3. We are not responsible for any accidents or delays when goods were picked by logistics company.

4. The buyers should be responsible for the import fees when goods arrived at the destination.

1. We accept PayPal, Trade Assurance, MonryGram, Western Union and Bank T/T.

2. Our Quotation includes goods cost, shipping cost and trading charges.

3. The buyers should be responsible for the trading charges.

4. The prices we quoted are correct at this time, but maybe subject to change after few days because of the currency fluctuations and the order quantity.

RUIZE Company Limited have close partnership with global big IC manufacturers and agents and devoted to IC supply services for those big electronic suppliers. RUIZE provide one-stop service of various electronic components, and also has plenty of stock in our warehouse. Products widely used in communications, computer, military, civil, automotive and other electronics products. RUIZE provides allocated, hard-to-find, standard long lead time, and obsolete components to manufacturers whose normal procurement process has failed to produce a much needed part. Because RUIZE is an independent distributor, RUIZE uses its vast network of trusted suppliers to source those components needed by its customers. Honesty wins the world,Quality creates value,Service promotes cooperation.RUIZE, your first choice electronic components supplier.