VibraCall Alert: Lets users discreetly receive transmissions. Flexible choice of frequency and channel options: Uses four channels and operates on 56 business-exclusive frequencies. Private line codes (PLCs): 121 interference eliminator codes maximize choices through 83 digital and 38 analog private lines. Voice-operated transmit: Enables hands-free operation with use of a headset accessory. Simplified cloning: Quickly copies settings from radio to radio when used with accessory. Battery versatility: Choice of rechargeable lithium ion or backup AAA with accessory. LCD window: Shows information such as battery gauge. Long battery life: Rechargeable lithium ion battery provides up to 12 hours of battery life. Drop-in charging: Keeps Motorola CLS Series radios centrally located and charged. Keypad lock: Helps prevent accidental changes to settings. 1 Watt. Coverage area: Up to 200 000 square feet (15 floors). Standard battery chemistry: Lithium Ion.