DISCONTINUED – See below for accessories that are still available
- Group calling Allows users to access up to 20 public and 10 private groups.
- Digital one-to-many group call Allows other DTR radios on same group ID and channel to communicate.
- SMS text messaging Transmits reception and origination information, as well as time/date stamp.
- Lithium ion battery Gives extra-long battery life—up to 14.5 hours of operation per full charge.
- Rugged, compact polycarbonate housing Offers comfort, with rubber overmold.
- Durable design Meets military 810 C, D, E, and F specifications for shock, vibration, water, dust and temperature extremes.
- Full-graphic backlit display Uses contrast adjustment and backlight timer and provides battery gauge.
- Caller ID Stores recent call list—up to last 10 transmissions.
- Unit-to-unit configuration Simplifies cloning operation, with via optional cable.
The DTR550™ digital on-site portable two-way radio operates at 900 MHz and offers enhanced communication options, including Digital One-to-One Calling and Digital One-to-Many Calling (Public Group and Private Group). It also provides enhanced performance with greater coverage, longer battery life and digital audio quality that is loud and clear everywhere you have coverage.