These FRS radios have 22 channels with blue backlit LCD display for easy viewing. They offer coverage of 300,000 square feet up to 25 floors with hands free communication (VOX). For assured handling they have an anti-slip design and is shock resistant withstanding up to a 2-meter drop. Included are rechargeable Lithium Polymer Batteries for continuous use up to 18 hours. These radios do not require a license or service fees due to high quality band frequencies. A unique circuit extends the life of the batteries, as if there are no transmissions within 10 seconds, the radio will automatically switch to battery save mode. 121 privacy codes are included. The IP167 rating provides dust and waterproof resistance. The 180-degree swivel holster allows for sideways rotation for multiple position use.