SPECIFICATION : - Portable mini duplex repeater - Clip to waist for total mobility - Protective neoprene shell - Two channels or conference - Expandable to 16 users - DECT / digital 1900 MHz band - Range up to 300 yards (line of sight, terrain dependent) - Dual power option – Reghargeable Li-Poly battery and AC adapter - Integrated volume control - Dual pin headset jack