RD Series 2-way radio provides businesses with a competitive communications edge. Exceptional audio quality and a rugged design. Features 89 UHF frequencies, audio accessory jack, VOX voice activated transmit with select audio accessories, and voice scramble option for added privacy and security. Compatible with repeaters. Interference eliminators with 122 codes. Speaker has low magnetic field to greatly reduce attraction of metal shavings. Free custom programming software option (requires RKN4155 cable). 12.5 khz narrowband, 2000 mw audio output. Meets military standards for high resistance to dust, moisture, shock, and vibration. Includes Li-Ion 2400 mAh battery with up to 18.5 hours of operation, 12 hour desktop charger, and heavy-duty spring action belt clip.