What is Bluetooth Class? | Laird Connectivity is Now Ezurio (2024)

FAQs

What is Bluetooth Class? | Laird Connectivity is Now Ezurio? ›

To communicate over the 100 meter range, a class 1 BT device is required at both ends. To communicate over the 10 meter range, a class 1 or class 2 device is required at both ends. Note: Class 3 devices are uncommon due to their very limited range.

Bluetooth technology is based on a low-cost, short-range radio link that operates in a globally available ISM band at 2.4 GHz. -Bluetooth class I emits a power of up to 100 mW, covering a distance greater than 100 m. -Bluetooth class II emits a power of up to 2.5 mW, covering a distance of several ten meters.

Bluetooth classes define a Bluetooth device's maximum power output; the higher a device's output power, the longer the maximum range.

Bluetooth is a wireless technology that uses a radio frequency to share data over a short distance, eliminating the need for wires. You can use Bluetooth on your mobile device to share documents or to connect with other Bluetooth-enabled devices.

There are three different power classes in Bluetooth. Class 1: maximum output power 100 mW (20 dBm). Used for extended range up to about 100 m; Class 2: maximum output power 2,5 mW (4 dBm).

In conclusion, Bluetooth 5.3 is a more stable and faster version of Bluetooth 5.0. We can expect this technology to become even more popular in the future as it offers many significant benefits over earlier versions of Bluetooth such as improvements in range and battery life for devices with short-range connections.

Meanwhile, Class 3 devices typically have a range of less than 3 feet (1 meter). It's not uncommon for Class 2 devices to reach 100 feet, but they don't officially support that range.

Most Bluetooth applications are battery-powered Class 2 devices, with little difference in range whether the other end of the link is a Class 1 or Class 2 device as the lower-powered device tends to set the range limit.

To see which Bluetooth version is on your PC

Right-click (or long-press) on the Bluetooth radio listing (yours might simply be listed as a wireless device) and then select Properties. Select the Advanced tab, then look for the LMP (Link Manager Protocol) listing in the Firmware or Firmware version area.

While Bluetooth is beneficial for many applications, be careful how you use it. My advice: Turn off Bluetooth when you're not using it. Keeping it active all the time makes your device more discoverable. As a bonus, keeping Bluetooth off will increase your device's battery life.

Do I need both Wi-Fi and Bluetooth? ›

One notable advantage of Bluetooth is its ability to function independently, even without an active WiFi network or mobile data. Bluetooth devices can establish direct connections with each other, bypassing the need for internet access.

Establishing a connection between two Bluetooth devices is like making a phone call. Similar to how you can call someone if you both know one another's phone number; two devices can connect if they have been paired, thereby storing one another's pairing information.

There are three classes that offer three standard intended ranges. Class 1 devices transmit at 100 mW with a range of 100 meters or 328 feet. Class 2 devices transmit at 2.5 mW with a range of 10 meters or 33 feet. Most Bluetooth headsets and headphones are common Class 2 devices.

Bluetooth defines three main power classes used by the devices. Power control is used to keep the radiation within the limit so that system works efficiently without interfering with the neighbour bluetooth devices.

Bluetooth can support up to 7 connections at any one time. The realistic limit depends on the bandwidth requirement of each device. Note that each Bluetooth service can only support one connection at a time.

Class 2 Bluetooth enables short-range wireless data transmission (10-20m), which has a low power consumption of around 2.5mW. Most commonly found in mobile devices. Most commonly found in mobile devices.

Class 1: With a transmission power of 100 mW (milliwatts), this is the strongest class. Class 1 devices can establish connections of up to 100 m in the open air, which is why this technology is used in industry, for example.

A power-class 2 Bluetooth® wireless device has a transmission operating range of approximately 30 feet (10 meters) within a line of sight but will vary depending on the surrounding conditions.

To communicate over the 100 meter range, a class 1 BT device is required at both ends. To communicate over the 10 meter range, a class 1 or class 2 device is required at both ends. Note: Class 3 devices are uncommon due to their very limited range.