Bluetooth Low Energy (BLE) is a wireless personal area network technology designed and marketed by the Bluetooth Special Interest Group (Bluetooth SIG) for the usage of applications in the healthcare, fitness, beacons, security, and home entertainment industries.

Bluetooth Low Energy technology operates in the same spectrum range (the 2.400–2.4835 GHz ISM band) as classic Bluetooth technology, but uses a different set of channels.

The main characteristics of BLE are:

• Low energy consumption
• Small modules
• Low cost
• Integrated within many mobile phones, tablets and computers

Reference: “Bluetooth Smart or Version 4.0+ of the Bluetooth specification” bluetooth.com. Archived from the original on 10 March 2017.