DESC: CLS-Series Business Light-Duty Two Way Radio Compact, durable radios let you stay in touch with anyone who moves around your property. Feature private line codes to prevent hearing other nearby users on the same channel. Built-in user changeable frequencies to match your current radios. Built-in audio jack permits use of optional headset/microphone in noisy areas or where privacy is required. Manufacturers one-year limited warranty. Ultra compact (2w x 1-1/10d x 4-1/10h) and lightweight (4.5 oz.). 56 UHF frequencies and 121 Interference Eliminator codes prevent hearing other users on the same channel. Three call tones alert user to incoming message. Digital display and cloning capability make programming multiple radios easy (requires Six-Unit Charger MTR-56531 sold separately). Includes rechargeable, Lithium Ion battery, desktop charger and belt-clip/holster.