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. **

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. **

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. **

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. **

A wireless gaming keyboard with RGB lighting has several functions that enhance the gaming experience. Firstly, the wireless feature allows for greater freedom of movement and reduces clutter on the gaming desk. The RGB lighting not only adds a visually appealing aesthetic to the keyboard but also allows for customization of the lighting effects to match the gaming setup or game theme. Additionally, many wireless gaming keyboards with RGB lighting come with programmable keys and macros, allowing gamers to customize and optimize their gaming experience. **

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. **

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. **

Without more information, it is difficult to determine if the portable CD player is broken. Some common issues that may indicate a broken CD player include difficulty reading discs, skipping or jumping during playback, or a malfunctioning display screen. It is recommended to check the power source, try different CDs, and ensure all connections are secure before concluding that the CD player is broken. If the issue persists, it may be necessary to seek professional repair or consider replacing the device. **