Complementary goods are products that are typically used together, such as peanut butter and jelly. When the price of one complementary good increases, the demand for the other complementary good may decrease. Substitute goods are products that can be used in place of each other, such as butter and margarine. When the price of one substitute good increases, the demand for the other substitute good may increase. Indifferent goods are products that consumers see as interchangeable and are indifferent between the two, such as two different brands of bottled water. **

Portable speakers typically cover a wide range of frequencies, usually from around 20 Hz to 20 kHz. This range allows them to reproduce a variety of sounds, from deep bass tones to high-pitched treble notes. However, the quality and accuracy of the sound reproduction can vary depending on the size and design of the speaker. Some portable speakers may emphasize certain frequencies over others, so it's important to consider the speaker's frequency response when choosing one for your needs. **

No, the Sonos One is not portable. It is designed to be a stationary speaker that can be placed in a fixed location within a home or office. It requires a power source and does not have a built-in battery for portability. However, it can be easily moved from room to room within a home as long as there is a power outlet available. **

A portable WLAN, or portable wireless local area network, is a device that allows users to create a wireless network on the go. It typically comes in the form of a small, portable router that can be easily carried around and used to connect multiple devices to the internet. Portable WLANs are often used in situations where a traditional wired internet connection is not available, such as when traveling or working remotely. They are also commonly used as a backup internet solution in case of an outage. **

To repair a Flexi Elegance dog leash, you can start by identifying the specific issue with the leash. If the leash is not retracting properly, you can try cleaning the inside of the leash housing and applying lubricant to the internal components. If the leash tape is frayed or damaged, you may need to replace it with a new tape. Additionally, if the locking mechanism is not working, you can try disassembling the housing and repositioning the internal components. If these steps do not resolve the issue, it may be best to contact the manufacturer for further assistance. **

A portable gaming console is a handheld device designed specifically for playing video games on the go. It typically features a built-in screen, controls, and speakers, allowing users to play games without the need for a TV or monitor. Portable gaming consoles often have a wide variety of games available for purchase or download, and they are popular among gamers who want to play games while traveling or away from home. Some well-known examples of portable gaming consoles include the Nintendo Switch, Sony PlayStation Portable (PSP), and the Nintendo 3DS. **

Good portable air conditioners are ones that are efficient, easy to use, and have a strong cooling capacity. Look for models with adjustable fan speeds, programmable timers, and a variety of operating modes such as dehumidifying and fan-only options. Additionally, consider the size and weight of the unit for easy portability, as well as the noise level to ensure it won't be disruptive. Some popular brands to consider are Honeywell, LG, and Black+Decker. **

A portable cooler box is a container designed to keep food and drinks cold while on the go. It is typically made of insulated materials to maintain the temperature inside and has a lid to keep the cold air in. Portable cooler boxes are commonly used for picnics, camping trips, beach outings, and other outdoor activities where access to a refrigerator is limited. They come in various sizes and styles, including hard-sided and soft-sided options, and are often equipped with handles or straps for easy carrying. **