2 way communication:DTR550 Portable Digital Two-Way Radio

900 MHz ISM Frequency-Hopping Digital Spread Spectrum
12 Alert Tones plus VibraCall
Battery Meter
License Free Communication
Backlit Display
Private Calling: One-to-One Communication
Public Group Calling: One-to-Many, Selected from List of 100 Group ID's
Private Group Calling: One-to-Many, Selected from Contacts
Remote Disable (Initiated by DTR650 Only)
Remote Monitoring (Initiated by DTR650 Only)
Remote Time / Date Update (Initiated by DTR650 Only)
SMS (Short Messaging Service), 5 Quicknotes
Contact List: Capacity 150 Shared Private / Public Group / Private Group - requires NTN2074 Mini Keyboard to program contact name list.
Li-ion 1200 mAh Battery, 3.6V
3 hour standard charger

Features:

The better a team communicates, the more efficiently it operates. Motorola DTR Series digital on-site two-way radios are the power tools that enable that communication. Unlike alternative technologies, there are no monthly fees. No service towers. No per-minute charges. Moreover, these durable on-site two-way radios help businesses keep operations on schedule, maximize job shift productivity, enhance security and increase overall customer satisfaction.

The next generation of DTR550 and DTR650 Digital On-Site Two-Way Radios for Small Business.