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Speakers are also called "horns". It is a very commonly used electro-acoustic transducer, which can be seen in sound-producing electronic and electrical equipment. A speaker is a transducer device that converts electrical signals into acoustic signals. The performance of the speaker has a great influence on the sound quality. The speaker is the weakest component in the audio equipment, and it is the most important component for the sound effect. There are many types of speakers, and they vary widely in price. Audio electrical energy produces sound through electromagnetic, piezoelectric or electrostatic effects that cause its cone or diaphragm to vibrate and resonate (resonate) with the surrounding air.

First of all、 we need to know two concepts: billing weight unit、 first weight and additional weight

Billing weight unit: The international express industry generally takes 0.5KG (0.5kg) as a billing weight unit.

First weight and additional weight: the first 0.5KG is the first weight for international express delivery、 and every additional 0.5KG is an additional weight. Generally、 the cost of hoisting is higher than that of continuous hoisting.

There is one price between 0.5KG and 0.5KG、 which is the first weight price. The part exceeding 0.5KG will be charged according to the additional weight price

Therefore、 the actual freight is equal to the first weight price+additional weight price

When the actual weight of the goods to be delivered is greater than the volume weight、 the freight=first weight freight+(actual weight (kg) × 2－1) × Renewal freight

When the actual weight of the delivered goods is small but the volume is large、 the freight=the first freight+(volume weight (kg) × 2－1) × Renewal freight

Note that the freight here is only the basic freight、 not the final total cost、 and there may be other additional costs.

Packaging fee: Generally、 international express companies provide free packaging、 cartons、 bubbles and other packaging materials、 but many items、 such as clothing、 can be packaged without extra fine packaging、 but some express companies will charge a certain packaging fee for valuable and fragile items. Packaging costs are generally not included in the discount calculation.

Fuel surcharge: all major international express will be updated in real time according to market conditions. Please consult customer service for specific fees.

Other uncertain expenses: such as service fees in remote areas、 sensitive freight charges for sending batteries、 powders、 liquids、 food、 brands、 etc.、 which are mainly related to the items and regions you send.

Basically、 total cost=(freight+fuel surcharge) × Discount+packaging cost+other uncertain costs

In addition、 different countries and different logistics channels have different basic charging standards、 and the cost may also be affected by many factors such as flight outage. The specific charging standards can also be subject to the real-time quotation of the express company.

There are three forms of overseas warehouse for cross-border e-commerce: FBA、 self built warehouse、 third-party warehouse

In fact、 managing the overseas warehouse is to manage its own goods and ensure that the goods are sufficient without wasting resources. This requires managers to consider sales data、 costs and other aspects to make full use of the overseas warehouse and help the normal supply of goods.

UPS special line to the United States、 which can be reached in 3-5 days at the earliest、 is more suitable for transportation of slightly larger products; For smaller products、 DHL can be selected. The cost and effectiveness are guaranteed、 and the cost performance ratio will be higher.

If you want to save transportation costs、 you can choose American special line logistics. The cost is lower than that of international express、 and you can get there in 6-8 days; The special sea transportation line is suitable for the transportation of large quantities of products、 with the lowest cost and the fastest 30 days.