Reduce vocal strain with this 5 watt lightweight personal PA system that weighs only 1.2 lbs on your waist. For teachers, tour guides, and trainers. Features a volume control with on/off switch. Includes adjustable 40" belt with 12" extension. Rechargeable NiMH power pack delivers up to 14 hours of continuous talk time. Number of Mic Inputs: 1; Power Source(s): NiMH Rechargable Batteries; Maximum Battery Operation Time: 14 h; Width: 7".