22 channel FRS radios.250,000 sq ft/20 floors range.Hands-free communication (VOX).IP67 Rating (dust resistant and waterproof).Shock resistant (can withstand 2 m drop).Rechargeable lithium polymer battery (1,000 mAh/3.7 V)Blue backlit LCD display for easy viewing.Vibration alert to notify you of incoming transmissions.Anti-slip design for assured handling to help prevent dropping the radio.