A: A three - in - one wireless charger can charge multiple devices such as mobile phones, earphones, and smartwatches simultaneously, saving charging space and time. There is no need to frequently change charging cables and plugs, keeping the desktop tidier and usage more convenient. Moreover, our product is equipped with an intelligent chip, which can effectively prevent overcharging and overvoltage, ensuring higher safety.

A: The price difference mainly lies in functions and materials. Some power banks have fast - charging functions, supporting higher - power output, which can significantly shorten the charging time; some are also equipped with digital display screens, which can accurately show the remaining battery level. Meanwhile, products with casings made of fire - retardant materials and having anti - slip designs have higher costs, resulting in higher prices accordingly.

A: Our computer stand can bear a weight of up to 8 kilograms and is suitable for most laptops and tablets ranging from 11 to 17 inches. Whether it is a thin and light laptop or a heavier gaming laptop, as long as it is within the load - bearing range, it can be stably supported. However, it should be noted that overloading may affect the lifespan and stability of the stand.

A: Sound quality is affected by factors such as speaker size, power, and audio decoding technology. The larger the speaker size and the higher the power, the louder the sound and the better the bass effect; advanced audio decoding technology can restore richer sound details. If you like outdoor use, you can choose a compact, portable, waterproof, and dustproof model; for indoor movie - watching or music - listening, you can choose a model with better sound quality and longer battery life.

A: Place mobile phones, earphones, smartwatches, and other devices in the corresponding charging areas respectively, ensuring that the wireless charging areas of the devices are closely aligned with the induction areas of the charger. If the device cannot be charged normally, try adjusting the placement position or restarting the charger. Also, make sure that the device itself supports wireless charging.

A: Yes, it will have an impact. When a power bank charges multiple devices at the same time, the total output power is distributed among each interface, resulting in a slower charging speed for individual devices. For example, when charging two devices simultaneously, the charging speed of each device may be only half of that when charging alone. It is recommended to prioritize charging the device with a low battery level or reduce the number of devices being charged simultaneously.

A: The stand adopts a [specific adjustment method, such as a knob - type or buckle - type] design. When adjusting the height, loosen the [adjustment part], raise or lower the stand to the appropriate position, and then tighten it; when adjusting the angle, press the [angle adjustment button], tilt the stand to a comfortable angle, and then release it. Please read the instruction manual carefully before use to avoid damaging the stand due to improper operation.

A: The methods for connecting multiple devices vary slightly among different Bluetooth speaker models. Some speakers support Bluetooth version 5.0 and above and can be connected to two Bluetooth devices simultaneously. Simply connect the devices one by one in the Bluetooth settings. When you need to switch the playback device, you can operate on the speaker or the device. For specific operations, please refer to the product manual.

A: It supports most devices on the market that comply with the Qi wireless charging standard, such as iPhone 8 and later models, Samsung Galaxy series, Huawei Mate/P series, and many other mobile phones that support wireless charging; wireless earphones like AirPods Pro and Samsung Galaxy Buds; and smartwatches like Apple Watch Series 3 and later. However, the charging power of different devices may vary.

A: Our power banks are equipped with multiple output interfaces, such as USB - A, USB - C, and Type - C, and come with an adapter. If your device has a special interface, you can use the adapter for connection; if it still cannot be adapted, it is recommended to contact customer service for solutions or choose another suitable power bank product.

A: Our computer stand is mainly suitable for laptops and tablets with flat screens. Due to the special curvature of curved - screen computers, they may not remain stable when placed on the stand and may even cause screen damage, so it is not recommended to use them.

A: If the TV or projector supports Bluetooth functionality, you can search for and connect to the speaker via Bluetooth; if the device does not have Bluetooth, you can use a 3.5mm audio cable to connect the speaker to the device (the speaker needs to support audio cable input). For specific connection methods, please refer to the product manual or consult customer service.

A: Disconnect the power supply before cleaning. Gently wipe the surface of the charger with a dry, soft cloth to remove dust and stains; if there are stubborn stains, you can dip a small amount of alcohol to wipe, but do not let liquid flow into the inside of the charger. Regularly clean the charging area to ensure that there are no foreign objects affecting the charging effect.

A: Charge the power bank to about 50% - 60% of its capacity, turn off the power bank, and store it in a dry, cool, and ventilated environment, avoiding direct sunlight and high - temperature, humid environments. Perform a full charge and discharge cycle every 2 months to prevent battery aging and extend its service life.

A: If rust is found on the metal parts, wipe the rust off with a soft, dry cloth, and then apply a small amount of anti - rust oil or petroleum jelly to prevent further rusting. During normal use, try to avoid the stand coming into contact with water and corrosive substances, and keep the stand dry and clean.

A: First, check if the battery has run out due to long - term non - use. You can try several full charge and discharge cycles to activate the battery. If the problem persists, the battery may be aging, and it is recommended to contact after - sales service for battery replacement. During normal use, avoid over - discharging, and charge the speaker in time when the battery level is lower than 20%.

A: Please keep the purchase receipt. Within the warranty period (12 months), contact us through the official website customer service channel or by calling the after - sales service hotline. Describe the fault phenomenon in detail and provide the product order number, photos, and other information. We will arrange professional personnel to inspect and repair it for you. If the return and exchange conditions are met, return and exchange services will be provided.

A: If the power bank overheats severely under normal use, it is a product quality problem. Please stop using it immediately, contact customer service to explain the situation. Within the warranty period (12 months), we will provide return, exchange, or repair services for you. When returning the product, make sure the packaging is intact and attach a description of the fault.

A: If the received computer stand is damaged, please contact customer service within 24 hours of receipt, and provide clear photos of the damaged product and the order information. We will issue a free replacement or process a refund for you, with no additional fees.

A: The warranty period for Bluetooth speakers is 12 months. After the warranty period, we still provide repair services. The fees will be charged according to the specific fault situation, including component costs and repair labor costs. Before the repair, we will inform you of the detailed cost breakdown in advance, and the repair will proceed only after you agree.